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{{Status|Canon}}
{{Era|H1|H2|H3|HW|FOR|TF|FS|HGN|GOO|CH|ILB}}
{{Cleanup}}
{{Infobox Military Unit
{{Military infobox
|unit_name= UNSC Marine Corps
|image=[[File:UNSC MC Logo.svg|100px|class=invert-dark]]<br>The [[Symbols of the UNSC|logo of the Marine Corps]]
|image=[[Image:H3_Zune_Marine.jpg|250px]]
[[File:Waypoint REQ Relief Image Marines.jpg|350px]]
|dates=  
|formed=[[2163]]{{Ref/Reuse|waypoint unsc}}{{Ref/Reuse|enc22pg56}}
|country=
|affiliation=[[Unified Earth Government]]
|allegiance= [[United Nations Space Command]]
|branch=
|branch=  
|type=
|type=  
|role=Expeditionary warfare
|role=  
|size=
|size=  
|nicknames="Jarheads",<ref>'''[[Halo: Spartan Assault]]''', ''[[Halo: Spartan Assault/Quotes|Quotes]]''</ref> "Leathernecks"<ref>'''[[Halo: Combat Evolved]]''', campaign level, ''[[The Truth and Reconciliation]]''</ref>
|command_structure=
|battles=*[[Interplanetary War]]
|garrison=
*[[Insurrection]]
|garrison_label=
*[[Human-Covenant War]]
|nickname=
*[[Post-Covenant War conflicts]]
|patron=
|commanders=*[[General]] [[Hogan]]<ref name="HE1">'''[[Halo: Escalation]]''', ''[[Halo: Escalation Issue 1|Issue #1]]''</ref>
|motto=
*General [[Daniel Black]]
|colors=
*General [[Van Zandt]]
|colors_label=
*General [[Kits]]
|march=
*[[Colonel]] [[Kennedy Mehaffey]]
|mascot=
*Colonel [[Felicia Sanderson]]
|anniversaries=
*Colonel [[Robert Watts]] {{C|Formerly}}
|equipment=
*[[Sergeant Major]] [[Avery Johnson]]
|equipment_label=
|battles=  
*[[Battle of Harvest]]
*[[Battle of Sigma Octanus IV]]
*[[Battle of Reach]]
*[[Battle of Installation 04]]
*[[First Battle of Earth]]
*[[Battle of Installation 05]]
*[[Second Battle of Earth]]
*[[Operation: FIRST STRIKE]]
*And many others
|decorations=
|battle_honours=
|commanders=*[[General]] [[Kits]]
*[[Major General]] [[Nicolas Strauss]]
|notable_commanders=
}}
}}
{{Quote|First to Fight.|UNSC Marine Corps Credo<ref>[https://web.archive.org/web/20060508200613/http://www.joyridestudios.com/halo_3_marine_1.asp '''Joyride Marine description''']</ref>}}
{{quote|We're going in! Get tactical, Marines!|[[Staff Sergeant]] [[Avery J. Johnson|Avery Johnson]]}}


The '''UNSC Marine Corps''' is a branch of the [[United Nations Space Command]] responsible for conducting land-based expeditionary amphibious and airborne combat operations, using the mobility provided by the [[UNSC Navy]] to rapidly deliver forces. '''Marines''' are also charged with the defense of Navy vessels and installations from hostile forces. While structured under the [[Unified Ground Command]],{{Ref/Book|Id=enc54|Enc11|Page=54}} the UNSC Marine Corps operates closely with the [[UNSC Naval Command]] and has some authority within the office.{{Ref/Book|Id=fb|Halo: Fleet Battles core rulebook|Page=6}} The Marine Corps is one of the five uniformed services branches of the UNSC Armed Forces.{{Ref/Site|Id=waypoint unsc|URL=https://www.halowaypoint.com/en-us/universe/factions/unsc|Site=Halo Waypoint|Section=Universe, Factions|Page=UNSC|D=19|M=1|Y=2021|LocalArchive=https://archives.halopedia.org/waypoint/www.halowaypoint.com/en-us/universe/factions/unsc.html}}
The '''UNSC Marine Corps''' is branch of the [[United Nations Space Command Defence Force]] primarily responsible for land-based military operations, and protecting [[UNSC Navy]] starships and bases from attack.


==History==
__TOC__
===Origins and formation===
[[File:HM-Interplanetary War-2.jpg|200px|thumb|left|A firefight inside a Jovian installation during the Interplanetary Wars.]]
The [[United States of America|United States]] [[Wikipedia:United States Marine Corps|Marine Corps]] is the precursor to the UNSC Marine Corps.{{Ref/Book|Id=enc31|Enc11|Page=31}} As the [[Interplanetary War]] began in the [[2160]]s, the [[national government]]s of the [[Sol system]] strengthened and deployed their militaries for conflict. However, the distributed nature of their forces led to disorder among the ranks of these militaries.{{Ref/Book|Id=enc42|Enc11|Section=Chapter Two: Humans - Human Colonization of Space|Page=42}} In response, the [[United Nations]] in [[2163]] commissioned a force primarily composed of naval and marine assets; the [[United Nations Space Command]], its [[UNSC Navy|Navy]], and its Marine Corps.{{Ref/Reuse|waypoint unsc}} The Marine Corps would be formed from the combination of the naval and spaceborne expeditionary units from various [[National government|nations]] into a single force.{{Ref/Book|Id=enc22pg56|Enc22|Page=56-57}}


Triggered by [[Koslovic]] attacks at the [[Argyre Planitia]] shipbuilding plants on [[Mars]], the United Nations began the [[Mars Campaign]] in [[2163|December 2163]]. This campaign marked the first extraterrestrial deployment of the UNSC Marine Corps, as the UNSC launched a series of lightning strikes against Koslovic forces near the Argyre Planitia.{{Ref/Reuse|enc42}}
==Introduction==


The decisive success of this campaign had a major impact on future military doctrine, resulting in UNSC Navy [[warship]]s carrying large Marine contingents for ground assaults and [[Naval boarding|boarding]] actions. Following the success of the UNSC Marine Corps at Mars, recruitment drives and [[propaganda]] tactics strongly bolstered UNSC forces and the Koslovics and [[Frieden]]s were defeated on [[Earth]] in [[2170]].{{Ref/Site|Id=XC|URL=http://www.xbox.com/en-US/games/h/halo/storyline.htm|Site=Xbox.com|Section=Halo: Combat Evolved, Game Features|Page=Story Line|D=7|M=11|Y=2008|LocalArchive=Archive:Xbox.com/Halo/Timeline}}{{clear}}
A rugged and diverse assortment of warriors, the Marines of the [[United Nations Space Command Defense Force]] are fighting a [[Human-Covenant War|losing war]] against the [[Covenant]]'s far superior technology and numbers. Under the leadership of notable commanders, they continue to wage a furious struggle against the [[Covenant]], even as their numbers dwindle. They're the best of the best, unfortunately, they're only [[Human]].


===The Insurrection===
== Operational History ==
[[File:H4FUD Marine.png|thumb|180px|A marine in [[Corbulo Academy of Military Science|Corbulo Military Academy]] during the period of the Insurrection circa [[2526]].]]
{{main|Insurrection}}
From [[2494]] to [[2525]], the UNSC Marine Corps would be responsible for dealing with [[Insurrectionist]] uprisings on UNSC colonies and star systems. From [[2512]], the Marines were involved in one of the largest operations in their history, [[Operation: TREBUCHET]], aimed at quelling rebel uprisings in the [[Eridanus system|Eridanus]] and [[Epsilon Eridani system|Epsilon Eridani]] star systems.


Units from the [[9th Marine Expeditionary Force]] were sent to [[Eridanus II]] in force, hoping to capture leaders of the rebel movement and pacify the population. One of these units, the first Battalion of the [[21st Marine Division]] commanded by [[Lieutenant Colonel]] [[Ponder]], was involved in a disastrous mission to try and capture the second in command of rebel forces in [[Elysium City]], which ended in the leader's family being killed and Ponder wounded and demoted.<ref>'''Halo: Contact Harvest''', ''page 112''</ref>
===First Encounters===
[[Image:Halo_Wars_Marine_BR.jpg|right|thumb|UNSC Marines fight superior numbers of [[Elite]]s with [[Battle Rifle]]s in one of the Marine Corps's first battles with the Covenant, this one on an arctic world.]]


In [[2524]], a Marine battalion was posted at the colony world of [[Tribute]], commanded by Lieutenant Colonel [[Aboim]] and supported by the corvette {{UNSCShip|Bum Rush}}, with air support from [[AV-14 Hornet]]s. The battalion attempted to put a stop to rebel bomb makers near the city of [[Casbah]]. Two special warfare squads, led by [[Staff Sergeant]]s [[Avery Johnson]] and [[Nolan Byrne]], were involved in disastrous operation in June. Byrne's team was killed during a hostage situation at a [[Jim Dandy]] restaurant near Casbah city; thirty-eight civilians, three Marines, and two rebels were killed in the bombing.<ref>'''Halo: Contact Harvest'''</ref>
The first documented Marine Corps encounter with the [[Covenant]] was the [[Battle of Harvest]], where the UNSC Marine Corps deployed to battle Covenant ground forces on the colony world before it was [[glassing|glassed]] by the [[Covenant Fleet]]. One of the soldiers deployed was [[Avery J. Johnson]]<ref>''[[Halo: Contact Harvest]]'' front cover</ref>.


===Human-Covenant War===
Another one of their first encounters<ref>''[[Halo Wars]]''</ref> occured on an arctic world, where the Marine Corps quickly established a home base while an outfit of Marines reconnoitered the nearby area, but were slaughtered by camoflagued [[Energy Sword]]-wielding [[Special Operations Elite]]s. In response, a detachment of Scorpions and Warthogs were sent to investigate, but were too late, and were met ,head on, only by a heavy Covenant battle force, with large numbers of [[Banshee]] attack fighters and [[Elite]] warriors, and the UNSC suffered heavy air casualties. Later, the Marine presence was reinforced by [[Spartan Group Omega]], but the outcome of this battle was unknown<ref>[[Halo Wars Announcement Trailer]]</ref>.
======Outer Colony campaigns======
[[File:HW Render Infantry 1920-crop.jpg|thumb|300px|left|UNSC Marines during the [[Harvest campaign]].]]
The UNSC Marine Corps' first encounter with the alien [[Covenant]] was at the [[First Battle of Harvest]] in [[2525]]. At the event, only three Marine officers were present, training the planet's [[Colonial Militia]]. During the battle, [[Captain (Marine Corps)|Captain]] [[Ponder]] became the Corps' first casualty of the war.


Not long after the First Battle of Harvest, the Corps' experienced one of their first major encounters with the Covenant at numerous engagements throughout the Outer Colonies, including the [[Harvest Campaign]], eventually lasting from [[2526]] to [[2531]]. At the final stages of the campaign, the Marines quickly established a [[Alpha Base (Harvest)|base of operations]] in Harvest's arctic region. A reconnaissance force led by [[Sergeant]] [[John Forge]] was deployed to survey the area. However, during the patrol, Covenant forces under the command of [[Arbiter]] [[Ripa 'Moramee]] overran and nearly destroyed the base. Forge rallied scattered marines, who quickly retook it from the aliens. After receiving reinforcements and repairing the base, the Marines fought through a sizable Covenant garrison force in an attempt to secure a mysterious [[Forerunner]] [[Relic (location)|relic|structure]] in the region.
===[[Battle of Sigma Octanus IV]]===


In the final weeks of 2525, the UNSC Marine Corps deployed en masse to the colony of [[Alpha Corvi II]] to [[Battle of Alpha Corvi II|defend]] its capital city from the Covenant who had invaded the planet in search of a Forerunner artifact. Their deployment also served to divert the bulk of the Covenant's infantry away from [[Blue Team]], who were charged with destroying the expeditionary force seeking to recover the artifact and then to claim it for the UNSC. Although Blue Team succeeded in their objectives with the reluctant assistance of the [[United Rebel Front]], the UNSC Marines were not able to repel the enemy and were ordered to abandon their offensive with casualties exceeding thirty percent. The UNSC fleet rescued as many surviving soldiers as possible before the few vessels that remained were ordered out of the system.  
There was a Marine presence on [[Sigma Octanus IV]]. In the first stage of the battle, while the [[UNSC Destroyer]] UNSC ''[[Iroquois]]'' destroyed one [[Covenant Destroyer]] and two [[Covenant Frigate]]s in an [[Keyes Loop|ambitious naval tactical manuever]], a [[Covenant Carrier]] was able to land a large contingent of troops on the northern pole of the planet.  


The [[Battle of Arcadia]] saw the UNSC Marine Corps holding the defensive line around major population centers to allow evacuation for the civilian population with the assistance of the SPARTAN-II [[Red Team]]. Successfully keeping Covenant forces from occupying the population centers, the Corps' began launching multiple assaults on the Covenant's base of operations to reclaim the planet.
The Covenant were able to take [[Côte d'Azur]], a major population center. Fortunately, almost all of the civilian population was able to be evacuated beforehand, and UNSC Marine Corps [[General]] [[Kits]] launched an assault by 0700 hours to retake the city.  It was unsuccessful.


The UNSC Marine Corps would take part in numerous actions against the Covenant on many of the Outer Colonies in the years that followed. Unfortunately, they were hopelessly outgunned, out-numbered and out-flanked by the Covenant forces and the Marine Corps would suffer tremendous losses in what eventually saw the near-destruction of the Outer Colonies.
Meanwhile, three Marine squads, nearby Côte d'Azur and under the command of [[Lieutenant]] [[McCasky]], were dispatched for a light reconnaissance of [[Sigma Octanus IV Grid 13 x 24]]. They were engaged by Covenant forces, including [[Hunter]]s, and a sole UNSC [[M12 Warthog LRV]] of the reconnaissance force survived with four Marines by the names of [[Harland]], [[Walker]], [[Fincher]], and [[Cochran]]. Shortly afterwards, [[Firebase Bravo]] was destroyed by the Covenant, and the Warthog was forced to divert to Marine HQ, ([[Alpha Headquarters]]).  It, too, had been attacked, though the Covenant attack had been repulsed, though not without suffering heavy casualties.  Harland promptly requested reinforcements from the [[Marathon-class Cruiser|''Marathon''-class Cruiser]] in orbit, the [[UNSC Leviathan|UNSC ''Leviathan'']].  The ''Leviathan'' sent a team of twelve [[SPARTAN-II]]s commanded by [[SPARTAN-117]] to reinforce<ref>''[[Halo: The Fall of Reach]]'', page 174</ref>.


======Siege of the Inner Colonies======
The surviving Marines of Marine HQ protected a [[Pelican Dropship]] while the SPARTANs detonated a [[HAVOK Nuclear Warhead]] in Côte d'Azur, cleaning the Covenant ground presence from Sigma Octanus IV, and then retreated back to the Marine-secured Pelican Dropship, which promptly took off with other Pelicans holding other Marine survivors for the UNSC ''Leviathan''<ref>''[[Halo: The Fall of Reach]]'', page 212</ref>.
[[File:HaloAnniversaryMarine.jpg|thumb|251px|A UNSC Marine on the {{UNSCShip|Pillar of Autumn}} circa [[2552]].]]
The Corps' experienced another encounter with the Covenant on the colony world of [[Sigma Octanus IV]] in [[2552]]. Upon landing, the Marines' hardware and equipments were rendered useless due to the planet's harsh environment. In the first stage of the battle, during a naval engagement, a Covenant {{Pattern|Ruma|light carrier}} was able to land a large contingent of troops on the northern pole of the planet. The Covenant were able to take [[Côte d'Azur]], a major population center. Fortunately almost all of the civilian population was evacuated beforehand, but the UNSC Marine Corps' [[General (UNSC)|General]] [[Kits]] launched a failed assault to retake the city.


The UNSC Marine Corps maintained a sizable presence on [[Reach]] when the Covenant [[Fall of Reach|stormed the planet]]; they bypassed the defense fleet in orbit, as well as the [[MAC Gun]] platforms, and made a considerable landing of soldiers on the North and South Poles. During the early hours of the battle, the Covenant had overrun [[FLEETCOM HQ]] on Reach, destroying the perimeter and swarming the Marine defenders with [[Type-26 Ground Support Aircraft|Banshees]], [[Zurdo-pattern Wraith|Wraiths]], and battalions of infantry. The situation became severe and critical when the Marines were forced to defend the [[Orbital Defense Generator]]s against a massive Covenant assault, using every available armored vehicle and defensive position from available bunkers. The Battle of Reach became one of the most devastating defeats for the UNSC Marine Corps in the Human-Covenant War.
===[[Battle of Reach]]===


The surviving Marines from the Battle of Reach served an important role in the [[Battle of Installation 04]], taking part in such engagements as securing the {{UNSCShip|Pillar of Autumn}} crash site, launching multiple guerrilla assaults on Covenant convoys and base of operations and rescuing captured Pillar of Autumn's personnel from a [[Truth and Reconciliation|Covenant battlecruiser]]. Initially, the Marines were part of a special operation consisting of a sizable [[Orbital Drop Shock Trooper]] special forces detachment and a standard Marine detachment to infiltrate [[High Council Chamber|Covenant High Command]] and kidnap a Covenant [[Hierarch|Prophet]].
The UNSC Marine Corps maintained a sizeable presence of Reach when the Covenant stormed the planet, bypassing the defense fleet in orbit and landing large numbers of soldiers on the north and south poles. By 0555 hours, the Covenant had overrun [[FLEETCOM HQ]] on Reach, destroying the perimeter and swarming the Marine defenders with [[Banshee]]s, [[Wraith]]s, and battalions of infantry. The objective of the Covenant ground armies was to destroy a series of fusion reactors on Reach's surface that powered the orbiting [[Super Magnetic Accelerator Cannon]]-equipped [[Orbital Defense Platform]]s, and thus, disabling the UNSC's sole major defensive asset and allowing the Covenant fleet to occupy Reach's airspace.


======Earth and the end of the war======
By 0622 hours, the situation was critical enough that the UNSC [[Halycon-class Cruiser|''Halycon''-class Cruiser]] sent a full detachment of [[SPARTAN-II]] supersoldiers to Reach in a [[Pelican Dropship]] to defend the fusion generators. The Orbital Defense Platforms were already being vaporized in space, and if they were compromised from the ground, the meager remaining UNSC defense fleet would swiftly fall.  
{{References|section}}
[[File:H2AMarines.png|thumb|left|300px|Two Marines standing beside [[John-117|Spartan-117]] during the [[Battle of Mombasa]].]]
{{Quote|Dear humanity, we regret being alien bastards. We regret coming to Earth. And we most definitely regret that the Corps just blew up our raggedy-ass fleet!|[[Sergeant]] [[Avery Johnson|Johnson]]}}
The UNSC Marine Corps remained in force on [[Earth]] and its geosynchronous [[orbital defense platform]]s, and were mostly prepared to repulse a relatively small Covenant invasion, when fifteen Covenant capital warships, two [[CAS-class assault carrier|assault carriers]] and thirteen [[Ket-pattern battlecruiser|battlecruisers]], entered the Sol System. They then played a significant role in during the [[Battle of Earth]], where they defended multiple major population centers from the Covenant's occupation such as those in [[Battle of Mombasa|New Mombasa]], [[Battle of Cleveland|Cleveland]], and [[Battle of Havana|Havana]].  


Several Marine detachments achieved a turning point during the course of the Battle of Earth when they managed to retake the cities and maintain temporary ground control for UNSC reinforcements to arrive. One such Marine detachment was [[E2-BAG/1/7]], which was able to engage the Covenant ground forces in [[Mombasa]], [[Kenya]] as the Covenant assault carrier landed ground forces in the city.
Meanwhile, [[Charlie Company]], a Marine detachment, was charge of defending [[Orbital Defense Generator Facility A-331]]. They were forced to defend against a massive Covenant attack, using chainguns and missiles to fight off superior forces. [[Lieutenant]] [[Buckman]], the CO of Charlie Company, flanked the Covenant, but FLEETCOM was alarmed that the Covenant overrun ODG A-331, and bombed the area, eliminating the Covenant as well as most of Charlie Company.


The Marine Corps also partook in a major assault alongside the UNSC Navy in the [[Battle of Voi]]. As ground forces, the Marines were to engage in the [[Battle of Voi]] with a [[John-117|SPARTAN-II supersoldier]] by eliminating anti-air vehicles and batteries, as well as destroying temporary Covenant outposts to allow UNSC reinforcements to refortify the area.
There were four survivors of Charlie Company that held their position until they met with the SPARTANs. The survivors were sent with several heavily wounded SPARTANs to a fallback position at [[Mechanite Mountain]], but all four Marines died from the Covenant, ending the UNSC Marine Corps's involvement in the Battle of Reach.


The Marines fought in the war's [[Battle of Installation 00|last battle]] at [[Installation 00|the Ark]]. Starting with their deployment in an [[operation]] codenamed Operation: BLIND FAITH,<ref>'''[[Halo Encyclopedia (2009 edition)]]''', ''page 57''</ref> the Marines launched numerous attacks on Brute strongholds, including an attack on the Ark's [[cartographer]]. After fighting on foot, and in heavy vehicles, the Marines drove off the Covenant. They then teamed up with the Elites and attacked three [[barrier tower]]s protecting the Ark's [[Installation 00 Citadel|Citadel]]. After capturing the first tower, with the help of the Master Chief, Marines and UNSC [[pilot]]s then defeated the Covenant aerial forces. They then waited for the deactivation of the third tower, where they then staged an attack on the Citadel. After fighting two Scarabs, they were then evacuated back to the fleet while the Master Chief and the Arbiter killed Truth. The surviving Marine forces fell back to Earth through the Portal on board the ''[[Shadow of Intent]]'' before [[Installation 08]] was activated.
===[[Battle of Installation 04]]===


===Further engagements===
==== Landfall ====
{{Main|Post-Covenant War conflicts}}
[[File:H4 SpOps LandGrab ThirdPerson 02.jpg|thumb|250px|A Marine wearing a post-war BDU  circa [[2557]].]]
After the end of the war against the Covenant, the UNSC Marines participated in a number of engagements against the [[Covenant remnants]] and the [[Insurrectionist]]s. Significant numbers of Marines stationed on [[Draetheus V]] helped fend off the [[Merg Vol's Covenant|Covenant]] assault during the [[Battle of Draetheus V]].<ref>'''Halo: Spartan Assault'''</ref> A force of Marines were also assigned to the UNSC Navy's new flagship, {{UNSCShip|Infinity}}. When the ship subsequently crash-landed on [[Requiem]] in [[2557]], the Marines joined the [[Spartan Operations|Spartans]] in fighting off the opposing [[Jul 'Mdama's Covenant|Covenant]] forces and [[Forerunner]] [[Promethean]]s in the [[First Battle of Requiem]]. When ''Infinity'' returned to Requiem in order to conquer the planet, Marines were once again dispatched in a joint campaign to reinforce the Spartans. The [[Requiem Campaign]], waged in [[2558]], saw both sides trying to seize the [[Janus Key]] before the [[shield world]]'s destruction.<ref>'''Halo 4''', ''[[Spartan Ops]]''</ref>


By [[2558]], some [[War Games]] simulations feature [[AI]] Marines that assist the [[Spartan-IV]]s in their training.<ref>[https://www.halowaypoint.com/en-us/news/canon-fodder-in-the-zone '''Halo Waypoint''': ''Canon Fodder - In the Zone'']</ref>
A sizable [[Orbital Drop Shock Trooper]] special forces detachment and a standard Marine detachment was assigned to the [[Pillar of Autumn|UNSC ''Pillar of Autumn'']] for its intended operation to infiltrate [[Covenant]] High Command and kidnap a [[Prophet]] as leverage for negotiating a peace treaty between the UNSC and the Covenant. However, the ambush over [[Threshold]] forced the Pillar of Autumn to crash land on the [[Forerunner]] installation known as [[Installation 04]] (Alpha Halo).
[[Image:Siege.jpg|right|thumb|A pair of UNSC Marines use [[Combat Barrier]]s to defend against the Covenant boarding of the UNSC ''[[Pillar of Autumn]]''.]]
The ''Pillar of Autumn'''s ODST detachment consisted of four 130-man companies: Companies A, B, C, and D, for a total of approximately 520 operators. During the Covenant boarding of the ''Pillar of Autumn'', they were assigned to defend the engine room of the warship against the boarding parties. They were extremely efficient in their defense, suffering only several dozen casualties while successfully holding off the Covenant at the two entrances to the massive engine chamber<ref>''[[Halo: The Flood]]'', page 33</ref>. However, the standard Marines did not fare as well in their defense, setting up multiple lines of defense around the periphery of the ''Pillar of Autumn'' and utilizing [[Combat Barrier]]s and urban combat techniques in the restrictive environment to hold off the enemy [[Elite]]s, [[Hunter]]s, [[Jackal]]s, and [[Grunt]]s. Ultimately, they were unsuccessful, and the Covenant were able to infiltrate many compartments of the warship before [[Captain]] [[Jacob Keyes]], commander of the ''Pillar of Autumn'', decided it was a lost cause to hold off superior numbers of attacking Covenant warships as well as internal boarders and ordered all hands to evacuate.<ref>''[[Halo: Combat Evolved]]'', ''[[Pillar of Autumn (Level)]]''</ref>.


==Organization==
Naval crewmen and standard Marines evacuated in [[Bumblebee]] lifepods while the ODST companies utilized [[Human Entry Vehicle]]s. The landings, however, had numerous problems and killed dozens of UNSC soldiers and crewmen alike. [[Major]] [[Antonio Silva]], the ODST Commander, ordered all surviving ODST units to secure a lightly-defended Covenant-held butte, which he turned into a coordinating home base for the UNSC resistance to come against the Covenant. After securing it, the ODSTs worked to make it a strategically defendable point for the UNSC survivors. It was christened [[Alpha Base]], and Major Silva ordered all remaining UNSC forces to rendezvous there to make a stand. The Covenant launched a large vehicular raid on Alpha Base of nearly a hundred [[Ghost]]s, but the 500 or so remaining ODSTs were able to repulse the poorly led assault.
===Command and control===
The Marine Corps is subordinate to the [[UNSC High Command]] and the branch has a seat on the [[UNSC Security Council]], currently represented by [[General]] [[Hogan]].{{Ref/Reuse|HE1}} The administrative head of the Marine Corps is the Commandant of the Marine Corps.{{Ref/Reuse|enc22pg56}} The Marine Corps is largely under the authority of the UNSC's [[Unified Ground Command]] (UniCom), responsible for managing ground-based operations of the Marine Corps, the [[UNSC Air Force]], and the [[UNSC Army]].{{Ref/Reuse|enc54}} However, due to the Marines' expeditionary nature, the branch has some with the [[UNSC Naval Command]], particularly in the Navy-dominated [[UNSC Fleet Command]] where the Marines have only a token representation.{{Ref/Reuse|fb}}


===Operating forces===
The Covenant placed as high a priority on recovering UNSC lifepods as the UNSC forces did. Many of the successful landings were soon sieged by Covenant attacks in an effort to minimize the number of UNSC personnel on the ringworld. Individuals and teams such as [[SPARTAN-117]]'s group spent a considerable amount of time securing lifepods throughout the installation.  However, it was soon learnt that [[Captain]] [[Jacob Keyes]] had been captured by the Covenant.
The branch also maintains its own [[UNSC Marine Corps of Engineers]] command.<ref>'''Halo: Evolutions''', "[[Midnight in the Heart of Midlothian]]", ''page 82''</ref> As well as possessing infantry, armored, and air units, the UNSC Marine Corps is based around [[Marine Expeditionary Force]]s, which contain at least one [[division]]-sized unit of Marines.<ref>'''[[Halo: Contact Harvest]]''', ''page 111''</ref> Because of its role as an "amphibious", space-deployed force, the Marine Corps enjoys a close relationship with the [[UNSC Navy]], with Marine complements being deployed on most warships.<ref>'''[[Halo: Combat Evolved]]'''</ref><ref name="Halo 2">'''[[Halo 2]]'''</ref><ref>'''[[Halo: The Fall of Reach]]'''</ref> The Marine Corps, along with the Navy, was headquartered at the [[Fleet Command Headquarters]] on [[Reach]], until the facility's destruction and the planet's [[Fall of Reach|fall]] in [[2552]].<ref>'''Halo: Contact Harvest''', ''page 47''</ref>


In addition to conventional forces, the Marine Corps maintain special forces in the form of the [[Orbital Drop Shock Trooper]]s under the [[Naval Special Warfare Command]]. ODSTs drop into hostile areas via [[drop pod]]s prior to the main invasion. They attempt to complete some of the most difficult tasks in hostile areas, such as clearing enemy ground forces or establishing landing zones for incoming [[Dropship 77-Troop Carrier|Pelicans]].{{Ref/Reuse|Halo 2}}<ref>[http://halo.bungie.net/projects/odst/guide.aspx '''Bungie.net''', ''ODST Field Guide'']</ref>
==== Truth and Reconciliation ====
[[Image:Fitzgerald Shooting.jpg|right|thumb|UNSC Marines in a Warthog defend themselves against a [[Banshee]] after crash-landing.]]
[[Image:Halo-09.jpg|thumb|right|[[Fire Team Charlie]] secures the [[Gravity Lift]] of the ''[[Truth and Reconciliation]]'' while awaiting [[Echo 419]] to bring in further reinforcements.]]
SPARTAN-117 led [[Fire Team Charlie]] to rescue Keyes from the grounded Covenant [[CCS-class Battlecruiser|''CCS''-class Battlecruiser]] ''[[Truth and Reconciliation]]''. They would set down a short distance from the Covenant battlecruiser, and then infiltrate through its [[Gravity Lift]].  From there, they would find Keyes, rescue him, and then evacuate.


==Personnel==
Surprisingly, the plan went almost flawlessly.  Despite a pair of [[Hunters]] being deployed by the Gravity Lift, the approach was simple.  From there, they were able to go up the Gravity Lift into the belly of the ''Truth and Reconciliation''.  The UNSC forces tenaciously fought their way through alien corridors for fifteen minutes before reaching a spacious hangar bay. However, before they could continue, the Covenant were able to lock the doors on the Marines and the Master Chief, continually sending in waves of reinforcements to kill the trapped UNSC soldiers in the locked hangar bay. After losing a significant amount of soldiers, [[Cortana]] was able to use her computer countermeasures to force open a door that lead from the hangar to the bridge of the warship. SPARTAN-117 ordered his Marine comrades to wait in the bridge while he assaulted a Covenant brig, freeing Keyes and also three other captured Marines. However, by the time they returned to the bridge, [[Energy Sword]]-wielding Elites had slain the rest of the recuse team. They headed to the Hanger Bay for evacuation, but Covenant air patrols prevented their rescue.  Instead, the team chose to hijack an enemy [[Spirit]] dropship that was laying dormant in the hangar bay, with Captain Keyes freed and secured<ref>''[[Halo: Combat Evolved]]'', ''[[The Truth and Reconciliation (Level)]]''</ref>.
{{Main|UNSC rank structure}}
''See [[:Category:UNSC Marine Corps personnel|here]] for a list of Marine personnel.''


Large numbers of men and women are employed by the UNSC Marine Corps. Service people hold ranks, which are divided between officers and enlisted. The rank structure of the UNSC Marine Corps is based around that of the [[Wikipedia:United States Marine Corps|United States Marine Corps]].
Shortly afterwards, the UNSC Marine forces stationed at Alpha Base, under the judgment of Major Silva, decide to embark on a risky raid on the crashed hulk of the ''Pillar of Autumn'' to get much-needed supplies and ammunition, vehicular support, and fuel for the ferrying Pelican Dropships. A small ODST force under the leadership of Lieutenant [[McKay]] raided the Covenant-patrolled crash site of the ''Pillar of Autumn'', using sniper fire to eliminate most of the defending [[Ghost]] attack vehicles and infantry, and then securing the ship with minimal difficulties, securing supplies for the UNSC forces.<ref>''[[Halo: The Flood]]'', page 136</ref> However, the Covenant learned about this, and before McKay's force can return to Alpha Base and drop off the newly-seized supplies and vehicles that they had secured from the wreck of the ''Pillar of Autumn'', they were intercepted by a superior Covenant force in a rocky terrain. The tide of battle is turned to the UNSC's favor, however, by discipline, organization, and luck. The UNSC's four [[Scorpion Tank]]s used shell bombardment to destroy the attacking Covenant [[Wraith]]s, while UNSC Warthogs fought off waves of assailing [[Banshee]] attack craft and [[Ghost]]s. The Covenant's aggressive tactics were no advantage, and the well-coordinated UNSC rocket units and a particularly bold feint by Second Lieutenant [[Oros]] destroyed the dozens of Covenant Banshees, and Marine sharpshooter [[Lance Corporal]] [[Jones]] took a serendipitous sniper rifle shot, killing a Covenant [[Elite]] officer, disorienting and fragmenting the Covenant resistance as UNSC forces plowed through the Covenant remnants.<ref>''[[Halo: The Flood]]'', page 160</ref>.


===Uniform===
==== The Flood ====
{{Main|UNSC Marine Corps Dress Uniform|UNSC Marine Corps Battle Dress Uniform}}
[[File:H2A - Chief and Johnson on Cairo.jpg|thumb|250px|Sergeant Johnson wearing a white dress uniform.]]
Marine Corps Dress Uniforms are worn on formal or ceremonial occasions, and are similar to those worn by their 20th and 21st Century predecessors in the [[Wikipedia:United States Marine Corps|United States Marine Corps]]. A variety of dress uniforms exist, including a white-and-blue uniform,<ref>'''[[Halo 2]]''', campaign level, ''[[Cairo Station]]''</ref> an all-blue uniform,<ref>'''[[Halo: Contact Harvest]]'''</ref> and an all-black funerary uniform.<ref>''[[The Life]]''</ref>


In the field, Marines usually wear passively [[camouflage]]d uniforms with usually green [[M52B body armor]]. Lightweight, though durable, the armor is surprisingly resilient. Marines don [[Ushuaia Armory]]'s [[CH252 helmet]]s equipped with a [[heads-up display]] and radio system.<ref name="enc49">'''Halo Encyclopedia: The Definitive Guide to the Halo Universe''', ''page 49'' (2011)</ref> These helmets are mounted with [[Helmet recorder|recorders]],<ref>'''Halo: Combat Evolved''', campaign level, ''[[343 Guilty Spark (level)|343 Guilty Spark]]''</ref> and certain models feature holographic text-displaying [[UNSC tactical eyepiece|eyepieces]] or [[Shooting glasses|ballistic goggles]]. Some Marines have been known to employ the "Rex" [[Visual Intelligence System, Reconnaissance|VISR]] for using in tracking down targets, such as Jiralhanae holdouts on [[Tribute]] and Earth.<ref>'''Halo 5: Guardians''', Rex VISR description</ref> In addition to helmets, Marines on field operations in more humid locales sometimes choose to wear [[Wikipedia:Boonie hat|boonie covers]], or those in colder environments don visored and thicker helmets. Marine [[Non-commissioned officer|NCOs]] are easily recognized by the cover they wear complete with the UNSC insignia, although they oftentimes substitute this soft cover for a more practical protective helmet; post-war NCOs often wear a variant with a fully sealed helmet that is otherwise worn by scouts. Marines sometimes don small helmet communications microphones or black-phased sunglasses on their helmets, and others carry backpacks. Marines sometimes wear black gloves to protect their hands and improve their grip on their weapons. Some Marines sport orange visors which attach to the brim of their helmets. Marines operating in cold environments wear environmentally-tailored armor, with insulated snow camouflage utilities and full body armor as well as insulated and visored helmets with something analogous to a balaclava.<ref>'''[[Halo Wars]]'''</ref> Marines also wear the lightweight and protective [[VZG7 armored boots]], the standard footwear of the Marine Corps since the middle of the 26th century.{{Ref/Reuse|enc49}}
{{Quote|Ahh... augh! Get [[Flood Infection Form|it]] off! Get it-augh!|[[Private]] [[Riley]], first UNSC casualty to the [[Flood]]}}


==Equipment==
Meanwhile, a [[Covenant]] [[Elite]], [['Qualomee]], surrendered to the UNSC and yielded intelligence about a Covenant arms cache in a faraway swamp. After Captain Keyes meets Major Silva and congratulates him and his ODST special forces operators for establishing Alpha Base for the UNSC, Keyes decides to lead a team of two squads of Marines under the leadership of [[Sergeant]] [[Avery J. Johnson]] to secure this Covenant arms cache while SPARTAN-117 is ordered to a remote island where a [[Forerunner]] construct named the "[[Silent Cartographer]]" is stationed - a construct that is believed to hold an entire and fully-detailed map of Installation 04. Securing the intelligence would give the UNSC an inestimable edge in their resistance efforts.
===Infantry weapons===
[[Image:B30 01.jpg|right|thumb|[[SPARTAN-117]] with a fireteam of Marines on a Pelican inbound to the [[Silent Cartographer]]'s island.]]  
[[File:UNSC marine American2.png|thumb|250px|left|A marine with the M7 SMG.]]
[[Image:Marines2.jpg|right|thumb|A pair of [[Gunnery Sergeant]] [[Waller]]'s Marines fight to secure a LZ after insertion on the beacheads.]]
The standard issue weapon for UNSC Marine Corps is [[Misriah Armory]]'s [[MA5 series|MA5 assault rifle series]], which can be outfitted with an [[M301 grenade launcher]] or an [[underslung shotgun]].<ref>[http://halo.bungie.net/news/content.aspx?type=topnews&link=BAGAssaultRifle '''Bungie.net''': ''MA5C Assault Rifle'']</ref> Marines were issued with the [[MA5B assault rifle|MA5B variant]] or the [[MA5C assault rifle|MA5C variant]], with the former being nearly universally phased out and replaced by the latter in late 2552.<ref name="enc318">'''Halo Encyclopedia: The Definitive Guide to the Halo Universe''', ''page 318'' (2011)</ref> After the end of the Human-Covenant War, both previous variants were phased out and replaced by the  [[MA5D assault rifle|MA5D]]. The [[BR55 battle rifle]] and [[BR55HB battle rifle|its heavy barrelled variant]] are used both as standard service rifles and as marksman's weapons. Their successor models, the [[BR85 battle rifle|BR85]] and [[BR85HB battle rifle|BR85HB]] variants were introduced in the postwar period, with the majority of the Corps favoring the more recent versions as the best models of the battle rifle.<ref>'''Halo 4: The Essential Visual Guide''', ''page 61''</ref> Furthermore, the UNSC Marine Corps has adopted the [[M395 Designated Marksman Rifle|M395 DMR]], though previous models have been eclipsed in the Marines by the prominence of the BR55 battle rifle and its variants. The [[M392 DMR]] also remains in service with Marine reserve units.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/dmr '''Halo Waypoint''': ''DMR'']</ref> The Corps issues several models of the [[M6 series|M6 handgun series]], with its standard sidearm being the [[M6H]] as of [[2555]], with the improved M6H2 entering service by 2557.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/magnum '''Halo Waypoint''': ''Magnum'']</ref> [[Special operations]] and vehicle crews are issued [[M7 SMG|M7 submachine gun]]s, with [[Orbital Drop Shock Troopers|ODSTs]] typically using the [[M7S SMG|suppressed model]].<ref>[http://halo.bungie.net/projects/halo3/content.aspx?link=h3smg '''Bungie.net''': ''M7 / Caseless Submachine Gun'']</ref>
[[Image:4wiki.jpg|right|thumb|A Marine assists [[SPARTAN-117]] in a [[Warthog]] to find the Control Room.]]
[[Image:Use Spoofer.jpg|right|thumb|UNSC Marine [[Kappus]] opens a locked door in the Covenant "weapons cache", unwittingly unlocking the [[Flood]].]]
[[Image:343GS-Marine Run.jpg|thumb|right|Captain Keyes's second squad flees from the Flood-infested arms cache after meeting with [[SPARTAN-117]].]]
Two Pelican Dropships inserted two squads of Marines (lead by [[Gunnery Sergeant]] [[Waller]]) and [[SPARTAN-117]] to an edge of the island. They were deployed under fire, but managed to secure a beachhead and a landing zone for the UNSC to land further reinforcements (including an [[M12 Warthog LRV]]). SPARTAN-117 and two Marines, [[Hosky]] and an unnamed Marine corporal, took the Warthog, driving it to a cliff that was the entrance to the facility that housed the Silent Cartographer. However, the Covenant knew that the UNSC was attempting to secure the intelligence, and locked the entranceway, forcing the trio to make a detour to a security substation, deactivating the locked door before finally being able to tunnel their way through the Covenant defenses stationed inside the subterranean facility and retrieving the intelligence.


[[Sniper]]s operate the [[SRS99C-S2 AM sniper rifle|SRS99C-S2 AM]] and [[SRS99D-S2 AM sniper rifle|SRS99D-S2 AM]], and more recently the [[SRS99-S5 AM sniper rifle|SRS99-S5 AM]], sniper rifle variants for anti-matériel and anti-personnel operations.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/sniper-rifle '''Halo Waypoint''': ''Sniper Rifle'']</ref> The [[M99 Special Application Scoped Rifle]] was also formerly used as a dedicated anti-matériel weapon.<ref name="HGN122">'''[[Halo Graphic Novel]]''', ''[[Halo Graphic Novel, Page 122|Page 122]]''</ref> Standard UNSC [[Sniper-spotter team|sniper teams]] consists of two operators; a spotter and a sniper. The [[M45 shotgun|M45]] and [[M90 shotgun]]s are often utilized in close-quarters engagements. Once the weapon that defining the Marine Corps as the [[Unified Earth Government]]'s spaceborne force-in-readiness, the Marine Corps has relegated the shotgun to less-visible duties with [[Naval boarding|boarding]] parties, though the shotgun still remains an important weapon of close-quarters warfare.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/shotgun '''Halo Waypoint''': ''Shotgun'']</ref> The [[M739 SAW]] was also adopted in squad-support role.<ref>'''Halo 4: The Essential Visual Guide''', ''page 58''</ref>
The surviving Marines still awaiting on the landing zone were scheduled to be reinforced by Pelican [[Bravo 22]] when it was shot down by ground fire. Shortly afterwards, a pair of [[Spirit]] dropships converged on the Marines by the landing zone, slaughtering them all on the exposed terrain of the beachhead while SPARTAN-117 was still within the bowels of the underground facility. The lack of a UNSC-held landing zone on the surface of the island meant that Echo 419 could not extract SPARTAN-117 and his vital intelligence. However, Cortana finds that there is a massively honeycombed system of massive open corridors that permeate the ground of Installation 04, allowing a vehicle that entered the system to travel essentially anywhere undetected. Echo 419 is able to slip into the system and rescue SPARTAN-117.  Using this system, SPARTAN-117 was able to be transported to the installation's Control Room<ref>''[[Halo: Combat Evolved]]'', ''[[The Silent Cartographer (Level)]]''</ref>.


Anti-armor fire is provided by the [[M41 SPNKR|M41 "SPNKR" rocket launcher]], and more recently the [[M57 Pilum]].<ref>[https://www.halowaypoint.com/en-us/universe/weapons/rocket-launcher '''Halo Waypoint''': ''Rocket Launcher'']</ref> The Marines also uses the [[M6 Spartan Laser]], though typically only ODSTs were issued these weapons prior to 2552 due to the high costs of the Spartan Laser at the time.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/spartan-laser '''Halo Waypoint''': ''Spartan Laser'']</ref> The Marine Corps also utilizes the [[XM510 grenade launcher]].<ref name="Halo Wars OSG">'''[[Halo Wars: Official Strategy Guide]]''', ''page 35''</ref> Suppressive fire is provided by the [[M247 machine gun]], the [[M247H machine gun]], the [[AIE-486H machine gun]], and mounted versions of the [[M41 Vulcan|M41 "Vulcan"]].<ref>'''Halo: The Essential Visual Guide''', ''page 115''</ref> The [[M6634 flamethrower|M6634]] and [[M7057 flamethrower|M7057]], two variants of the [[NA4 flamethrower]], are sometimes used in an anti-infantry role by specialists known as [[Hellbringers]].<ref>'''Halo: The Essential Visual Guide''', ''page 69''</ref> The [[M9 fragmentation grenade]] is the standard-issue hand [[grenade]] of the UNSC Marine Corps.<ref>[http://halo.bungie.net/projects/reach/article.aspx?ucc=ordnance&cid=28441 '''Bungie.net''': ''Grenade'']</ref> Several specialized grenades, as well as numerous types of landmines and explosive charges, are also used by Marine infantry. By [[2557]], the [[M363 sticky detonator]] and [[ARC-920 railgun]] have been added to the heavy weapons armory of the UNSC Marine Corps.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/railgun '''Halo Waypoint''': ''Railgun'']</ref>
Captain Keyes's team, meanwhile, landed near the site of the supposed weapons cache. The two Marine teams cleared the Covenant defenses and began to search the underground facility where the arms were supposedly stored. One team stayed back while the other team, led by [[Sergeant]] [[Johnson]], searched the facility. Eventually, they ran across a door that had been electronically locked by the Covenant. Keyes ordered the door be opened. Shortly after entering the room, however, the advance team, including Captain Keyes, weas attacked by the [[Flood]]. [[Sergeant]] [[Johnson]] would be left to play dead as Flood [[Infection Forms]] took over his fellow soldiers as his body was unsuited for infection.  [[Private]] [[Jenkins]] would also survive the attack due to a failed infection attempt and was rescued by UNSC forces.


===Ground vehicles===
[[Cortana]] had already learnt of the threat the Flood possessed and sent [[SPARTAN-117]] to save Keyes.  However, the Spartan would only find Jenkins' helmet and it's mission log. When he finally evacuated, he ran into several Marines and began retreating with them. He would then disappear after encountering [[343 Guilty Spark]].<ref>''[[Halo: Combat Evolved]]'', ''[[343 Guilty Spark (Level)]]''</ref>.
[[File:H2A - Warthogs.jpg|thumb|250px|Marines driving Warthogs through Mombasa.]]
The Marine Corps makes heavy use of the [[M12 Warthog|M12 Force Application Vehicle]], or Warthog, which is used for armored patrols, personnel mobility, and combat fire-support. The Warthog is produced in several variants. The most common of these variants is the [[M12 LRV|M12 Light Reconnaissance Vehicle]], which is armed with an [[M41 Vulcan|M41 Light Anti-Aircraft Gun]], or the later [[M46 Vulcan|M46 Light Anti-Aircraft Gun]]. Postwar Marines have begun to utilize the re-armed M12B model of Warthog, equipped with the [[M343A2 chaingun]]. Light anti-vehicle support is provided by the [[M12G1 Gauss Warthog|M12G1 Light Anti-Armor Vehicle]], armed with either the [[M68 Gauss Cannon]] or the more recent [[M70 Gauss cannon]], the [[M12A1 Rocket Warthog|M12A1 Light Anti-Armor Vehicle]], which is mounted with a [[M39 rocket turret|102mm SC-HE Rocket Turret]], and the [[M12R Rocket Warthog|M12R Light Anti-Armor Vehicle]], which features an [[M79 rocket launcher|M79 Multiple Launch Rocket System]] or updated [[M80 missile launcher|M80 Multiple Launch Rocket System]]. The [[M831 Troop Transport]] serves as a fast, lightly armored transport vehicle. The [[M274 Ultra-Light All-Terrain Vehicle]] is commonly used for scouting and light target interdiction.


For heavy engagements, the Marine Corps operates the older [[M808B Scorpion|M808B]] and more recent [[M808C Scorpion|M808C]] variants of the [[M808 Scorpion|M808 "Scorpion" Main Battle Tank]], which is armed with an [[M512 smooth-bore high-velocity cannon]] and a pintle-mounted [[M247T machine gun|M247T Medium Machine Gun]] (M808C) or coaxial [[M231 machine gun|M231 Machine Gun]] (M808B). More recently following the Requiem Conflict, however, the Marine Corps has begun to adopt the updated [[M820 Scorpion|M820 Scorpion Main Battle Tank]], which is armed with a 150mm M990 electrothermal-chemical smoothbore cannon and an as-of-yet unidentified pintle-mounted heavy machine gun.<ref>https://www.halowaypoint.com/en-us/universe/vehicles/scorpion</ref> In smaller numbers, the Marines also deployed the heavier dual-[[M310 smooth-bore high-velocity cannon]] wielding [[M850 Grizzly|M850 "Grizzly" Main Battle Tank]] throughout the Insurrection and Human-Covenant War, but postwar logistical issues led the Marine Corps to retire it.<ref>[https://www.halowaypoint.com/en-us/universe/vehicles/grizzly '''Halo Waypoint''': ''Grizzly'']</ref> The [[M9 Wolverine|M9 Wolverine Main Anti-Air Tank]] (MAAT) is the Corps' primary mobile anti-air asset. The [[SP42 Cobra|SP42 Cobra Main Battle Tank]] fills the role of tank destroyer and anti-fortification light artillery support. The [[M312 Heavy Recovery Vehicle]] and [[M313 Heavy Recovery Vehicle]] provides heavy matériel recovery and troop transport.
Meanwhile, Alpha Base came under heavy attack from a Covenant force. The Covenant had identified that SPARTAN-117 was responsible for the majority of the hundreds of casualties during the raid on the ''[[Truth and Reconciliation]]'', and an ambitious [[Special Operations Elite]] named [[Zuka 'Zamamee]] was tasked with leading a platoon of Special Operations Elites into the bowel of Alpha Base to assassinate the [[SPARTAN-II]] while a much larger Covenant force distracted the UNSC defenders. Using a captured Pelican dropship, [[Charlie 217]], 'Zamamee infiltrates the UNSC HQ, but SPARTAN-117 is nowhere to be found. Meanwhile, [[Spirit]] dropships hit the UNSC defenses hard, but are repulsed by mass sniper rifle fire and several [[Scorpion Tank]]s. Furthermore, the ODSTs organize several hunter-killer teams to re-secure the HQ, murdering all the Special Operations Elites save 'Zamamee, who is able to rescue a UNSC-captured grunt named [[Yayap]] and escape with Yayap in a [[Banshee]] fighter<ref>''[[Halo: The Flood]]'', page 220</ref>.


Less standard vehicles also saw service with the Marine Corps during the Human-Covenant War. The [[M-145D Rhino]] was outfitted with a reverse-engineered [[plasma mortar]]. The [[XRP12 Gremlin|Gremlin Combat Support Vehicle]] is used to disable enemy vehicles with its onboard EMP weapon. The [[Cyclops]] support exoskeleton was used both repair duties and logistical support, as well as in combat, though it was eventually retired from service. In recent years, the [[HRUNTING/YGGDRASIL Mark IX Mantis|Mantis]] has been utilized by the Marines, with the Corps having contracted [[Materials Group]] to produce a refit package to allow alternate loadouts on the walker.<ref>[https://www.halowaypoint.com/en-us/universe/vehicles/mantis '''Halo Waypoint''': ''Mantis'']</ref>
==== Containment ====


===Aircraft===
While SPARTAN-117 journeyed through various areas in Installation 04, [[Cortana]] was able to briefly contact Alpha Base, informing them that SPARTAN-117 will use the ''Pillar of Autumn'''s fusion reactors to trigger a thermonuclear explosion that would destroy Installation 04. However, the explosion would kill all life on the ringworld if the UNSC forces failed to escape before the detonation. Major Silva came up with an audacious plan: to recapture the damaged ''Truth and Reconciliation'', already taken to launch readiness by a Covenant repair team, and to use it to escape the ring while SPARTAN-117 sets off the delayed thermonuclear reaction and escapes as well. Afterwards, SPARTAN-117 will rendezvous with the UNSC-controlled ''Truth and Reconciliation'' and then they will return to [[Earth]], heralding a glorious victory for the UNSC: a superweapon destroyed, a Covenant armada annihilated, and the first Covenant warship ever captured.
[[File:HW2 MarineDeployment Concept.png|thumb|250px|UNSC Marines preparing for deployment.]]
The Marine Corps' most common aircraft is the [[Pelican]] dropship. The Pelican is used as a multirole aerodyne which is capable of carrying numerous armament configurations, including [[Scorpion missile|Scorpion anti-tank missiles]], [[ANVIL-II Air-to-Surface Missile|Anvil II air-to-surface missiles]], as well as a chin-mounted 7.62mm machine gun, or a 40mm or 70mm autocannon. The Pelican can also be outfitted with an M247 or AIE-486H machine gun in its troop bay.


The UNSC Marine Corps operates the [[GA-TL1 Longsword]] as its primary fighter/interceptor and as a tactical bomber. The Corps also operates the [[B65 Shortsword|Shortsword-class Bomber]], which serves as a close air support aircraft. The Marines utilize the [[AV-14 Hornet]] as a light attack craft and gunship. Earlier in the war, the Marines also utilized the [[AV-22 Sparrowhawk]] as a close air support gunship, though it was largely retired from service due to problems with its propulsion system. Currently, the [[AV-49 Wasp]] supplements the Marine Corps' existing stocks of AV-14 and AV-22 aircraft.<ref>[https://www.halowaypoint.com/en-us/news/canon-fodder-buzz-generating '''Halo Waypoint''': ''Canon Fodder - Buzz Generating'']</ref> Heavy air-to-ground support is provided by the [[AC-220 Vulture]] gunship. Marine air units are usually intended to support ground forces or to drop off vital equipment for the Marines, either in close-air-support or air interdiction roles.<ref>''[[Halo: Spartan Strike]]''</ref>
However, the plan was not perfect. Alpha Base's contingent learned of the [[Flood]] as a brief skirmish with nearby Covenant patrols leads to an exaggerated battle as the Flood attack, and the UNSC personnel are mostly horrified by the Flood's combat potential and viciousness.<ref>''[[Halo: The Flood]]'', page 251</ref> After it was learned that Flood are aboard the ''Truth and Reconciliation'', ODST [[Lieutenant]] [[McKay]] and UNSC AI [[Wellsley]] were convinced that the UNSC survivors should not risk severe casualties boarding a Flood-held starship...and even if they prevail and bring the warship to Earth, if any Flood managed to invade Earth, it would "fall"<ref>''[[Halo: The Flood]]'', page 317</ref><ref>''[[Halo: The Flood]]'', page 331</ref>. However, Silva, the commanding officer of all of Alpha Base's forces after Keyes's untimely death, demurs, and instead assaults the ''Truth and Reconciliation'', with his ODST special forces operators securing the ship with minimal casualties and the noncombat personnel in tow. Surviving senior naval officers from the ''Pillar of Autumn'' are sent in after the ODSTs deem the warship as "secure", and they move swiftly to undersee last-minute repairs to the ''Truth and Reconciliation'' before it takes off.


==Gameplay==
However, McKay still holds doubt - even if the ''Truth and Reconciliation'' took off successfully and reached Earth without incidence, the epidemiological threat of the Flood meant that if even one parasite managed to infect a human on Earth, it would be a disaster of a galactic scale. McKay, in conscience, is forced to damage the ''Truth and Reconciliation'''s reactors and destroy the warship, killing herself and all the UNSC personnel and surviving Flood beings onboard<ref>''[[Halo: The Flood]]'', page 332</ref>.
===''Halo Wars''===
Marines are a playable unit in ''Halo Wars'' that can be built from a [[Barracks]] for 100 resources and one population slot. Armed with MA5B assault rifles and have the ability to throw M9 frag grenades. Marines are a jack of all trades, master of none-type unit typically used to counter aircraft. Marines have the following upgrades:


*''New Blood'': Adds another Marine to the squad. Costs 200 resources and a tech level of 1.
==== Escape ====
*''RPG'': Replaces the M9 frag grenade ability with M41 rocket launchers. Costs 400 resources and a tech level of 2.
*''Medic'': Adds a Medic to the Marine squad allowing the unit to heal itself after battle. Costs 700 resources and a tech level of 3.
*''ODST'': Turns all Marines into ODSTs (only available if [[James Cutter|Captain Cutter]] is the leader). Armed with M90 shotguns, ODSTs are able to be dropped in from drop pods. Costs 1800 resources and a tech level of 3.


===''Halo Wars 2''===
While almost all of Alpha Base's personnel are eliminated in the tragic self-detonation, [[Avery J. Johnson]] did not make it onto the ''Truth and Reconciliation'' after surviving the Flood attack.  He was able to join three other UNSC personnel that were, likewise, not aboard the ''Truth and Reconciliation'' as well: [[Office of Naval Intelligence]] [[Lieutenant]] [[Elias Haverson]], ODST [[Corporal]] [[Locklear]], and [[Warrant Officer]] [[Sheila Polaski]]. Together, the four escaped Installation 04 in a [[Pelican Dropship]]<ref>''[[Halo: First Strike]]'', page 48</ref> before SPARTAN-117 set off the thermonuclear detonation, himself escaping in a [[C709 Longsword-class Starfighter|C709 ''Longsword''-class Starfighter]]<ref>''[[Halo: Combat Evolved]]'', ''[[The Maw (Level)]]''</ref>.
[[File:Blitz Marines.png|thumb|150px|''Halo Wars 2'' Blitz Card of UNSC Marines.]]
*'''Info:''' Core Infantry, Flexible ground troops, Quick capture unit, Effective against air
*'''Tier:''' 0
*'''Cost:''' Population 3, Supplies 150, Power 0
'''Marines upgrade: Grenade throw'''
*'''Info:''' New Ability, Can throw grenades, Small Area Attack, Cannot target air
*'''Tier:''' 1
*'''Cost:''' Supplies 0, Power 400
'''Marines upgrade: Combat Tech'''
*'''Info:''' Unit Upgrade, Adds Combat Technician, Can repair vehicles, Wields rocket launcher
*'''Tier:''' 2
*'''Cost:''' Supplies 0, Power 600
Marines can be built by all UNSC leaders at the [[Firebase]]. They are a jack-of-all trades unit, performing adequately against infantry, vehicles, aircraft, and structures. Marines can no longer upgraded to ODSTs, who are now a [[Orbital Drop Shock Troopers#Halo Wars 2|distinct unit]] that can only be called via Leader Power. In [[Blitz]] Marines cost 10 energy, Extractor Marines cost 50 energy, Reactive Marines cost 50 energy, and Armored Marines cost 60 energy.


===Pro and Cons===
After Installation 04's destruction, [[Cortana]] conducted a scan of the interstellar debris of Installation 04, and found an echo of Polaski's dropship. SPARTAN-117 was able to link up with the four other UNSC survivors of the cataclysm, but seven Covenant warships: six [[Covenant Cruiser]]s and one 3-kilometer [[Covenant Flagship]], entered the system and opened fire at the Longsword fighter and the Pelican. SPARTAN-117 ordered everyone into the Longsword while the Pelican was sent ahead as bait, drawing plasma fire from the Covenant starships while [[Cortana]] remotely hacked into the Covenant taskforce's [[Battlenet]], causing electronic mayhem that temporarily stunned the weapons aboard the warships while the Pelican, with SPARTAN-117, Johnson, Locklear, Polaski, and Haverson on board, slipped into the hangar of the Covenant Flagship<ref>''[[Halo: First Strike]]'', page 58</ref>.
====Pro====
[[Image:Marine.png|thumb|right|[[Corporal]] [[Locklear]] fights the [[Covenant]] with an [[MA5B Assault Rifle]] in the brief battle inside the ''[[Ascendant Justice]]''.]]
*Jack for all trades, okay against all units.
The small group of unprepared UNSC warriors fight through [[Elite]] defenders while [[Cortana]] slips into the Covenant Flagship's computer systems from a fiber optic port, and then proceeds to drain atmosphere from most segments of the ship, asphyxiating most of the Covenant guards. However, the bridge's crew still remains oxygenated, and seal the doors to the bridge, barricading themselves from the UNSC raiders. This measure is futile: SPARTAN-117 uses a [[plasma grenade]] to electromagnetically scramble the locks to the doors, and the UNSC forces seize the understaffed bridge with minor difficulties...SPARTAN-117's personal energy [[shield]]s fail just as an [[Energy Sword]]-wielding [[Zealot]] appears. SPARTAN-117 is severely wounded in the resulting wrestle, but Marines Johnson and Locklear are able to kill the Zealot<ref>''[[Halo: First Strike]]'', page 74</ref>.
*Lethal when attack in hordes.
*Cheap to build (150 Supply).
*Only consume 3 population.


====Cons====
Cortana interfaces with the bridge's navigational controls to let the now UNSC-controlled flagship, ''[[Ascendant Justice]]'', flee from the system, but a Covenant AI counters her, physically disabling the [[Slipspace]] drive of the ''Ascendant Justice'' and preventing Cortana from executing a jump out of the system before the six other Covenant Cruisers vaporize the flagship. SPARTAN-117, however, makes a journey through the damaged warship to kill the [[Grunt]]s guarding the disabled Slipspace drive, and then forces a Covenant [[Engineer]] to repair the drive, allowing Cortana to program the ''Ascendant Justice'' to jump from the system, barely surviving the bombardment of the six Covenant Cruisers, thus ending the UNSC retreat from the wartorn system<ref>''[[Halo: First Strike]]'', page 87</ref>.
*Weak against Siege Weapons.
*Not suited for long-scale combat without a proper upgrade.
{{Clear}}


==Trivia==
===[[First Battle of Earth]]===
{{Linkbox|gameplay=yes|quote=yes|gallery=yes|gallerypage=Images of UNSC Marines}}
[[Image:Hotelz2rw.jpg|right|thumb|[[Hotel Zanzibar]] defended by a light Marine fireteam.]]
*The UNSC Marine Corps shares many traits of its culture and organization with the modern [[Wikipedia:United States Marine Corps|United States Marine Corps]]. Like the USMC, the UNSCMC organizes its units into [[division]]s, which are subdivided into [[regiment]]s. Most other military forces of the present day are subdivided into [[brigade]]s. In addition, every known UNSCMC rank corresponds directly to a USMC rank, and the enlisted and officer ranks that have been described imply that exactly the same insignia are used as well. ''Semper Fi'', the [[Latin]] motto used by the USMC, short for ''Semper Fidelis'' ("Always Faithful" or "Forever Faithful") is also used by the UNSCMC.<ref>'''[[Halo: The Flood]]'''</ref> "Ooh Rah", a motivational call originating from the USMC, is often said by Marines of the UNSCMC.
[[Image:DSC00123.JPG.jpg|right|thumb|Marines of [["A" Company]] fire at the Scarab walker with a .50-caliber machine gun.]]  
**In the ''[[Halo: Combat Evolved]]'' level ''[[The Truth and Reconciliation]]'', [[Jacob Keyes|Captain Keyes]] tells a Marine to "''Stow your bellyaching, soldier - remember, you're a leatherneck!''" [[Wikipedia:Leatherneck|Leatherneck]] was a nickname earned by US Marines in the era of the [[Wikipedia:Continental Marines|Continental Marines]]. Although an appropriate reference to Marines, the term "Leatherneck" and "soldier" are viewed by their respective service members as being incompatible, and a means of differentiating between service in the Marine Corps or Army.
[[Image:Scarabcannon.jpg|right|thumb|The [[Scarab]] destroys a UNSC Marine Corps [[Scorpion Tank]] in a single shot.]]
*The equipment and armor used by UNSC Marines (particularly in ''Halo: Combat Evolved'', resembles those used by the US Colonial Marines in the 1986 film ''[[Wikipedia:Aliens (film)|Aliens]]'', one of many [[List of references to Aliens in the Halo series|similarities]] to the film in the ''Halo'' series. The Marines' equipment also bears some resemblance to the US Army's [[Wikipedia:Future Force Warrior|Future Force Warrior]] program. They also bear a striking resemblance look to the soldiers in [[Wikipedia:Starship Troopers (film)|Starship Troopers]].
[[Image:DSC00124.JPG|right|thumb|[["A" Company]] of the [[405th Marine Infantry Division|405<sup>th</sup> Marine Division]] before attacking the [[Scarab]] walker.]]
{{Quote|[[UNSC In Amber Clad|We're]] taking [[First Battle of Earth|this fight]] to the [[Earth|surface]].|[[Commander]] [[Miranda Keyes]]}}


==Gallery==
The UNSC Marine Corps remained in large force on Earth and its geosynchronous [[Orbital Defense Platform]]s, and were thus mostly prepared repulse a [[Covenant]] invasion when fifteen Covenant capital warships - [[Assault Carrier]]s and thirteen [[Covenant Cruiser]]s - invaded the Sol System.
===''Halo: Combat Evolved''===
 
<gallery>
Because the large number of orbital Magnetic Accelerator Cannons made it almost impossible for any of the Covenant warships to reach Earth unscathed, the Covenant sent [[Covenant Boarding Craft|boarding craft]] to board a number of Orbital Defense Platforms. The boarders were to swiftly penetrate the platform's infantry defenders and set bombs in the core of the stations and then detonate them, destroying the defense station inside-out with minimal losses. ''[[Malta Station]]'' and ''[[Athens Station]]'' fell almost immediately to the internal sabotaging, and Covenant forces invaded ''[[Cairo Station]]'' as well, the command center for UNSC fleet operations during the battle. The crew of the ''Cairo'' held out longer, ableit with heavy casualties, and Marines and crewmen fought a coordinated holding action, trying to force the boarders out of the peripheral hangars and the intermediate common rooms, but their defenses were penetrated by a small force of [[Elite]]s and [[Grunt]]s that planted a bomb in the Fire Control Center of ''Cairo Station''. Only [[SPARTAN-117]]'s timely reinforcement of the Marine garrison and his assault on the Fire Control Center managed to disarm the bomb in time, thus saving ''Cairo Station'' from destruction<ref>''[[Halo 2]]'', ''[[Cairo Station (Level)]]''</ref>.
File:HCE Marines Concept 1.png|''Halo: Combat Evolved'' concept art.
 
File:HCE Marines Concept 2.png|''Halo: Combat Evolved'' concept art.
However, despite the fact that ''Cairo Station'' and hundreds of others of Orbital Defense Platforms still stood, the loss of the ''Malta'' and ''Athens'' allowed a Covenant Assault Carrier to penetrate the UNSC Navy's defensive web around Earth, and this Assault Carrier attacked [[Mombasa]], [[Africa]]. However, the [[405th Marine Infantry Division|405<sup>th</sup> Marine Infantry Division]], some of whose elements were stationed at Mombasa at the time, were able to battle against the Covenant as the Assault Carrier landed [[Phantom]]s, [[Orbital Insertion Pod]]s, and used its [[Gravity Lift]] to directly deploy reinforcements. Furthermore, the UNSC ''[[In Amber Clad]]'' was also able to use its [[Pelican]]s to deploy Marines to assist the 405<sup>th</sup> Marine Division.
File:HCE Marine.jpg|A marine in ''[[Halo: Combat Evolved]]''.
 
File:Marines on the Battlefield.jpg|Marines on [[Installation 04]] in ''Halo: Combat Evolved''.
The ''In Amber Clad'' sent three Pelican Dropships to reinforce and to drop off Marine and ODST fireteams at [[Grid Kilo 23]], where SPARTAN-117 would lead a coordinated Marine assault to liberate the Covenant-contested city center, when the Pelicans were unexpectedly attacked by a Scarab walker ''en route''. Two of the Pelicans were forced to break off when one of the ''In Amber Clad'''s Pelicans, which contained SPARTAN-117 and Sergeant Johnson, crashed into a building. Miraculously, everyone aboard the Pelican save the pilot survived, and SPARTAN-117 was able to rally the Marine passengers, holding a nearby battle-damaged building against multiple Covenant attacks until the Marines could be evacuated at a nearby clearing. SPARTAN-117 meanwhile proceeded to liberate a small ODST force, under [[Gunnery Sergeant]] [[Pete Stacker]], at [[Hotel Zanzibar]], and then fought through a Covenant-controlled tunneled highway. Meanwhile, a Covenant Scarab walker brushed aside Marine defenses, walking over the highway, and then past a large bridge and into the midsections of the city completely unopposed by Marine small arms fire<ref>''[[Halo 2]]'', ''[[Outskirts (Level)]]''</ref>.
</gallery>
 
SPARTAN-117 and a small team of Marines pursued the lumbering walker, fighting through long segments of Covenant-controlled city locations until reaching the city center, where [["A" Company]] of the [[405th Marine Infantry Division|405<sup>th</sup> Marine Division]] defended against waves of Covenant [[Ghost]]s, [[Wraith]]s, and [[Phantom]]s in a fortified industrial building. Completely undeterred by UNSC Marine Corps [[Scorpion Tank]]s or .50-caliber machine guns, the Scarab too brushed aside "A" Company in its fortified building, until it was caught in a nearby canal system and physically trapped. Pelicans commenced air strikes on the trapped walker, but the armor was barely scarred, and there was no other choice but to board the Scarab itself and destroy internally. While "A" Company's remnants provided suppressive fire, [[SPARTAN-117]] jumped aboard the enemy walker, killing its crew and destroying it<ref>''[[Halo 2]]'', ''[[Metropolis (Level)]]''</ref>.
 
===[[Battle of Installation 05]]===
 
{{Quote|[[Installation 05|This]]...is another [[The Halos|Halo]].|[[Cortana]]}}
{{Quote|So this is what my [[Jacob Keyes|father]] found...|[[Commander]] [[Miranda Keyes]]}}
 
After the [[Slipspace]] cataclysm over [[New Mombasa]] involving the [[Prophet of Regret]]'s [[Assault Carrier]], the [[UNSC Frigate]] UNSC ''[[In Amber Clad]]'' pursued the Prophet of Regret's carrier through [[Slipspace]] to [[Installation 05]] (Delta Halo), where Regret was determined to sermonize and then activate the ring world and bring about [[The Great Journey]] to all of the [[Covenant]] and lead them to a believed transcendence. While the carrier sent [[Phantom]] dropships to the surface to land a Covenant army on Installation 05 and to allow Regret to begin his religious ceremony in a Forerunner temple before activating the ring, the ''In Amber Clad'' passed over the approximate position where Regret's temple was, deploying ten [[Human Entry Vehicle]]s, and shortly afterwards, a group of Pelican Dropships.
 
While only a handful of HEV pods survived the insertion, the surviving ones contained [[SPARTAN-117]] and several heavily armed [[Orbital Drop Shock Trooper]]s. Together, they cleared a small area of [[Shielded Plasma Cannon]]s and a small group of Covenant soldiers, establishing an LZ for a Pelican Dropship to deploy an [[M12 Warthog LRV]] and another pair of ODST operators. SPARTAN-117 took the Warthog, and with the help of the ODSTs, fought through a Covenant-controlled bridge before another Pelican deployed a [[Scorpion Tank]] that provided extra firepower for a UNSC offensive to push through two large Forerunner temple ruins, where yet a third Pelican from the ''In Amber Clad'' dropped off ammunition-resupplying [[Resupply Canister]]s and Marine reinforcements. After battling through a rivered ravine entrenched by aerial [[Drone]]s and [[Jackal Sniper]]s, the UNSC force reached a small Forerunner temple, where SPARTAN-117 and two remaining Marines fought off a pair of [[Honor Guard Elite]]s<ref>''[[Halo 2]]'', ''[[Delta Halo (Level)]]''</ref> before continuing onwards through a series of closed temples before reaching an open circular platform where a fourth Pelican was scheduled to air-drop additional armaments. However, before that could happen, SPARTAN-117 and whatever surviving Marines were attacked by an airborne [[Phantom]] dropship that deployed two heavy [[Hunter]] warriors that savagely assailed the UNSC personnel before they were fought off and the fourth Pelican arrived to bring [[BR55 Battle Rifle]]s, Sniper Rifles, and [[M19 SSM Rocket Launcher]]s. SPARTAN-117 continued to take a gravitic gondola from the open platform, fighting off enemy [[Banshee]] fighters and [[Ranger Elite]]s to reach a series of submerged temple structures and finally another gondola to the temple where Regret was sermonizing, and fighting off [[Energy Sword]]-armed [[Honor Guard Elite]]s, managed to assassinate the Prophet of Regret before the [[Prophet of Truth]] and [[Prophet of Mercy]] ordered an Assault Carrier to use an [[Energy Projector]] to vaporize the temple in a vain attempt to kill the "Demon", afterwards which contact was lost with SPARTAN-117 and whatever remaining Marines that were accompanying him at the time.
 
Meanwhile, at ''[[High Charity]]'', the [[Changing of the Guard]] occured, and the [[Arbiter]] was deployed to the [[Sentinel Wall]]<ref>''[[The Official Halo 2 Strategy Guide]]'', page 118</ref> to deactivate the containment shield that prevented any being from journeying to the [[Library]] and retrieving the [[Index]]. After the Containment Shield was deactivated, appearantly several Marines were sent to the Flood-Infested Wall<ref>''[[The Official Halo 2 Strategy Guide]]'', page 115</ref><ref>''[[Halo 2]]'', ''[[Sacred Icon (Level)]]''</ref> to try to make their way to the Library, but were overwhelmed by the Flood and assimilated. However, while the Arbiter punched through heavy Flood defenses surrounding the Library, the UNSC tried again to attack the [[Library]] and secure the [[Index]] to ensure that the Covenant would not use it to activate Installation 05 and cleanse the galaxy of sentient life in their misguided religious quest. While the Arbiter cleaned out the Flood infestation barring way to the Library, the UNSC were able to slip a small force of Marines directly next to the Forerunner structure, who managed to infiltrate it, but took casualties from [[Flood infection form]]s. [[Corporal]] [[Corporal Perez|Perez]], and [[McKenzie (Marine)|McKenzie]], both UNSC Marines, died from infection forms at the periphery of the Library. At the end, only [[Miranda Keyes]] and [[Avery Johnson]] survived, but while Commander Keyes secured the Index, the [[Arbiter]] managed to race into the Library, incapacitating Perez and MacKenzie before launching a sneak attack on Johnson and Keyes, knocking them both unconscious before securing the Index for the Covenant<ref>''[[Halo 2]]'', ''[[Quarantine Zone (Level)|Quarantine Zone]]''</ref>.
 
:''See the main article: [[Battle of High Charity]]''
 
However, [[SPARTAN-117]] had survived the Covenant vaporization of Regret's Temple, but had a more insidious fate: decieved by the Flood overlord creature known as the [[Gravemind]], he became the Flood's pawn, being teleported to ''[[High Charity]]'' in an attempt to battle through legions of Covenant troops to capture or kill the [[Prophet of Truth]] and secure the Index to ensure that Truth would not activate Halo. Early on during the [[Battle of High Charity|Battle of ''High Charity'']], however, [[Cortana]] detected the [[CNI]] wave signatures of several UNSC Marines inside the bowels of ''High Charity''. SPARTAN-117 took a short detour, launching an attack on a four-story Covenant detention facility and rescuing five UNSC Marines from a pair of heavily guarded Covenant detention blocks, who aided him in his battles through ''High Charity''. In the end, however, none of the five survived, and the [[Prophet of Truth]] escaped from SPARTAN-117's grasp, fleeing in a Phantom dropship while [[Tartarus]], Chieftain of the Brutes, took the imprisoned Keyes and Johnson, along with a cohort of [[Honor Guard Brute]]s, in two seperate [[Phantom]]s to Installation 05, where Tartarus planned to use the Index to activate Halo at the Control Room of Installation 05<ref>''[[Halo 2]]'', ''[[Gravemind (Level)]]''</ref>.
 
Meanwhile, the ''In Amber Clad'' had not fared well after Keyes's team's departure from the frigate. Flood forces managed to storm aboard by unknown means, killing the human crew and using their unprecedented sentience to crew the ship, managing it to crash it onto a high tower on ''High Charity'', spreading Flood into the Covenant planetoid, and also crew its Pelican dropships, which also scattered and crashed, providing the Flood with extensive routes to invade ''High Charity''. A number of its crew were assimilated into the insula of the parasite, fighting against SPARTAN-117 as the Master Chief battled through a Flood-infested ''High Charity'' to secure access to the [[Forerunner Ship]]<ref>''[[Halo 2]]'', ''[[High Charity (Level)]]''</ref>.
 
While Tartarus took the Index and Miranda Keyes in one Phantom to the Control Room, the other Phantom, carrying Johnson, diverted its route...when Johnson appearantly managed to overpower the Brute crew and escape the Phantom, managing to slip through to an inactive [[Scarab]] walker while two nearby Marines fought off a large pack of [[Brute Captain]]s with [[Plasma Pistol]]s. These two Marines were saved when the [[Arbiter]] arrived, slaying the Brutes. However, Johnson pointed the Scarab's main cannon at the Arbiter...but not in bad will. The Arbiter and Johnson made a truce. Johnson would use the main cannon of the Scarab to punch a hole in the surface of the Control Room while the Arbiter would charge in with a [[Banshee]] and defeat Brute Captains and Brute Honor Guards before confronting [[Tartarus]] while Johnson would unmount from the Scarab, joining a large number of [[Covenant Seperatist]] [[Councilor]]s, [[Zealot]]s, and [[Special Operation Elite]]s in aiding the Arbiter to kill Tartarus and prevent him from using the Index to activate Halo.
 
However, Tartarus put up a significant resistance, and despite being heavily outnumbered by the Arbiter's Elite comrades, used his personal energy shield and the gargantuan [[Hammer of Rukt]] to defend himself. In the end, however, Tartarus was unsuccessful. Johnson used his exceptional marksmanship with a sniper rifle to take down Tartarus's powerful shields from afar with a [[Particle Beam Rifle]] while the [[Arbiter]] and his allies attacked the unshielded Tartarus, finally killing him and bringing an end to the Chieftain of the Brutes and preventing the firing of the Halos, terminating the UNSC Marine Corps's involvement at Installation 05.
 
===[[Second Battle of Earth]]===
[[Image:Halo 3 Marines.png|right|thumb|Four Marines take cover in an African jungle.]]
[[Image:H3 E3 Tsavo Highway Road.jpg|right|thumb|The UNSC Marine Corps attacks the [[Covenant Loyalist]]-held [[Tsavo Highway (Location)|Tsavo Highway]].]]
The UNSC Marine Corps had a substantial involvement in the defense of Earth during the Second Battle of Earth, being the majority of the UNSC's ground defenses when the Covenant landed on Earth in multiple locations, which included the continent of [[Africa]].
 
A scattered Marine presence appeared to remain in force in the immediate vicinity of [[New Mombasa]], where a [[Slipspace]] disaster wiped off a significant number of Marine assets, including at least a portion of the [[405th Marine Infantry Division|405<sup>th</sup> Marine Infantry Division]]. A number of Marines were present in an African jungle, where they aided [[SPARTAN-117]]'s mission to destroy a nestled [[Covenant Loyalist]] encampment<ref>''[[Halo 3]]'', ''[[Sierra 117 (Level)]]''</ref>. Later, after SPARTAN-117 broke out into a [[Halo 3 UNSC Base|UNSC base]] on the outskirts of [[Voi]], he was dispatched with a pair of Marine-crewed [[Mongoose]]s to punch through [[Covenant Loyalist]] blockades in [[New Mombasa]] and [[Tsavo Highway (Level)|Tsavo Highway]] and reach the cliffs of the excavation site of the [[Ark]], and was aided by [[Warthog]]s<ref>''[[Halo 3]]'', ''[[Tsavo Highway (Level)]]''</ref>.
 
Afterwards, the UNSC sent a Warthog convoy to Voi, reinforcing the weak UNSC forces there and to penetrate Covenant anti-aircraft defenses patrolling the outskirts of the Ark. First, SPARTAN-117 and a dozen Marines loaded in Mongooses moved to destroy a lumbering Covenant Scarab walker in the area, with the aid of [[Banshee]] and [[Hornet]] aerial vehicles, and then, with the [[Arbiter]], destroyed a [[Covenant Artillery|Covenant anti-air emplacement]] that was heavily guarded by [[Brute]]s and [[Hunter]]s, and allowed a corridor for [[Miranda Keyes]] to journey to the heart of the Ark in a Pelican Dropship, unimpeded by anti-aircraft weaponry<ref>''[[Halo 3]]'', ''[[The Storm (Level)]]''</ref>.
 
== Equipment ==
===Armor===
[[Image:Marine.jpg|thumb|right|A Marine in full brown/gray combat body armor and armed with an [[MA5B Assault Rifle]] in ''[[Halo: Combat Evolved]]''.]]
[[Image:Marines halo 2.jpg|right|thumb|A pair of Marines in ''[[Halo 2]]'' with the olive green color scheme.]]
 
Marines have few bio-augmentations and usually wear passively camouflaged armored uniforms. They wear dark-colored metal-alloy armor to shield them from gunfire. Marine helmets are mounted with display holographic text-displaying eyepieces and [[Helmet Recorder|helmet recorders]]. As well as helmets, Marines on field operations in more humid locales sometimes choose to wear [[Wikipedia:Boonie hat|boonie covers]], or those in colder environments don visored and thicker helmets.  
 
Marine [[Non-commissioned officer|NCOs]] are easily recognized by the hat that has the Eagle, Globe and Anchor of the Marine Corps that they wear. They often times substitute this command hat for a protective helmet, although they occasionally wear helmets in ''[[Halo 2]]'', although in ''[[Halo: Combat Evolved]]'', they are portrayed as always wearing the hat. Sergeants are (usually) more tactically adept, are better shots, and are tougher to kill than normal Marines, though these differences in gameplay, if any, are largely unnoticed.
 
In ''[[Halo: Combat Evolved]]'', Marines sported gray fatigues, and over that, pieces of brown armor plating covering the head, shoulder, and shins. At times, they only wore their fatigues, even forgoing helmets or even body armor plating in hazardous combat operations. At times, their helmets were also subsituted for boonie covers. Some Marines had small backpacks built into their back chest armor plating, although these backpacks appeared to be part of a medical uniform, as the text "EMP" (Emergency Medical Pack) was written on the back.
 
The UNSC Marine armor was much different in ''[[Halo 2]]''. Marines appear to wear an armored suit underneath jungle camoflague-patterned padding, and a conspicuous green load-bearing armored vest over their chest pading for additional protection.  The standard-issue armor is more efficient than the body armor issued to the Marines of ''[[Halo: Combat Evolved]]''. The Marines apear as less of a rag-tag group in [[Halo 2]] than they were in [[Halo: Combat Evolved]]. They no longer wear boonie covers and are never in combat without their armor. In fact, in ''Halo 2'', the only times Marines are seen without any armor is during the awards ceremony aboard ''[[Cairo Station]]'' during a noncombat situation. In that case, they were wearing their dress whites.
 
In ''[[Halo 3]]'', the Marines sport armor that is an evolution from that of ''Halo 2'', with heavier and well-articulated woodland-colored full body armor (chest plate, back plate, shoulder plates, elbow pads, and knee pads) over camoflagued fatigues, allowing them to passively camoflague well in jungle terrain. Marines sometimes don boom mikes or black-phased sunglasses on their helmets, and others carry backpacks.
 
[[Orbital Drop Shock Troopers]], otherwise known as "Helljumpers", are a special operations group within the UNSC Marine Corps. They wear full body armor with a dark black camoflague scheme. They sport heavy and articulated black body armor, which is also believed to be pressure armor that allows for safe transport in small ships in turbulent atmospheric entry and also fully-covering and fully-visored black helmets.
 
Marines operating in cold environments wear environmentally-tailored armor, with snow camoflague scheme heavily thickened and fully-covering body armor and visored helmets with bacaclavas.
 
=== Armament ===
====''[[Halo: Combat Evolved]]''====
[[Image:Halo-06.jpg|right|thumb|Two Marines of ''[[Halo: Combat Evolved]]'': one with a [[SRS99C-S2 AM Sniper Rifle]] and the other armed with an [[MA5B Assault Rifle]]]]
[[Image:ODST_02.jpg|thumb|right|Several [[Orbital Drop Shock Trooper]] special forces operators in ''[[Halo 2]]'' with their black camoflague full body armor.]]
*[[MA5B|MA5B ICWS Assault Rifle]]
*[[SRS99C-S2 AM Sniper Rifle]]
*[[M90 Assault Shotgun]]
*[[M41 SSR MAV/AW Rocket Launcher]]
*[[M9 HE-DP Grenade]]
====''[[Halo 2]]''====
*[[M6C Magnum Sidearm]]
*[[BR55 Battle Rifle]]
*[[SMG|M7/Caseless Sub Machine Gun]]
*[[SRS99C-S2 AMB Sniper Rifle]]
*[[M41 SSR MAV/AW Rocket Launcher]]
*[[M90 Assault Shotgun]]
*[[M9 HE-DP Grenade]]
*[[M247 GP Machine Gun]]
====''[[Halo 3]]''====
*[[M6G Magnum]]
*[[MA5C Assault Rifle]]
*[[BR55HB SR Battle Rifle]]
*[[SMG|M7/Caseless Sub Machine Gun]]
*[[Spartan Laser|W/AV M6 Grindell/Galileian Nonlinear Rifle "Spartan Laser"]]
*[[SRS99D-S2 AM Sniper Rifle]]
*[[M41 SSR MAV/AW Rocket Launcher]]
*[[M90 Assault Shotgun]]
*[[M9 HE-DP Grenade]]
====''[[Halo Wars]]''====
[[Image:Marines HALO wars.jpg|right|thumb|A pair of Marines in ''[[Halo Wars]]'' with cold environment operations helmets.]]
*[[BR55 Battle Rifle]]
=== Vehicles ===
====''[[Halo: Combat Evolved]]''====
*[[M12 Warthog LRV]]
*[[Scorpion Tank|M808B Scorpion Main Battle Tank]]
*[[D77-TC Pelican]]
 
====''[[Halo 2]]''====
 
*[[M12G1 Warthog LAAV]]
*[[M12 Warthog LRV]]
*[[Scorpion Tank|M808B Scorpion MBT]]
*[[D77-TC Pelican]]
 
==== ''[[Halo 3]]'' ====
[[Image:Troop Carrier Hog.png|right|thumb|Four Marines ride with [[SPARTAN-117]] in a damaged [[Troop Transport Warthog]].]]
*[[Elephant]]
*[[Mongoose|M274 ULATV Mongoose]]
*[[M12 Warthog LRV|M12 LRV Warthog]]
*[[Troop Transport Warthog]]
*[[Scorpion Tank|M808 Scorpion MBT]]
*[[D77H-TCI Pelican]]
 
====''[[Halo Wars]]''====
*[[M12 Warthog LRV|M12 LRV Warthog]]
*[[Scorpion Tank|M808 Scorpion MBT]]
=== Miscellaneous ===
 
*[[CH252 Helmet]]
*[[M52B Body Armor]]
*[[VZG7 Armored Boots]]
*[[S90 Gas Mask]]
*[[Spoofer]]
*[[VX7 Nerve gas]]
*[[PG000E Portable Electricity Generator]]
 
== Combat ==
 
=== ''[[Halo: Combat Evolved]]'' ===
[[Image:Marines on the Battlefield.jpg|right|thumb|Several Marines fight with [[SPARTAN-117]] to retake the [[Control Room]] of [[Installation 04]].]]
In ''[[Halo: Combat Evolved]]'', almost all Marines carry [[MA5B Assault Rifle]]s, though occasionally they can be seen with a [[Sniper Rifle]] or the [[Shotgun]], or very rarely the Covenant [[Needler]] or [[Plasma Rifle]] when no UNSC armaments are available. They are relatively accurate with these weapons, with a hit percentage of 50% of upwards, often firing in terse burts with the Assault Rifle, killing a [[Grunt]] in one or two bursts, knocking a [[Jackal]]'s shield of position with repeated bursts, or cooperatively working with other Marines to take down an [[Elite]]. Marines also often utilize [[Fragmentation Grenade]]s in combat.
 
Marines will strafe and avoid fire but not usually seek cover. They will roll out of the way of a vehicle but they will not pick up different weapons, [[Health Pack]]s, or additional ammunition. Marines are also good pathfinders, often able to manuever around obstacles such as boulders or fallen crates in their paths.
 
Marines are conscious of back stabbing. After you have killed two humans of any type, the rest of the Marines in the campaign level will attack the player. If one kills [[Captain Keyes]] or any other members of the bridge crew in the campaign level ''[[Pillar of Autumn (Level)|The Pillar of Autumn]]'', [[Cortana]] will lock the doors and summon a squad of invincible Marines to destroy one.
 
Marines hitch rides on player-driven [[Warthog]]s and [[Scorpion Tank]]s but are only capable of piloting [[Ghost (Vehicle)|Ghost]]s by themselves. They will exit Scorpions when the player leaves the driver seat, but will stay in a Warthog until they are ordered to get out.
 
Interestingly, the enemy Marines are most vulnerable to in ''Halo: Combat Evolved'' are the [[Infection Form]]s of the [[Flood]]. Once one is attached to a Marine, it cannot be shaken off and kills the soldier.
 
=== ''[[Halo 2]]'' ===
[[Image:Trouble.jpg|right|thumb|A Marine prepares to fight a [[Brute]].]]
[[Image:H3_E3_Marine_Trio2.jpg|right|thumb|Three Marines fire at a departing [[Phantom]] in an African jungle in ''[[Halo 3]]''.]]
In ''[[Halo 2]]'', the Marines are intelligent in different ways than in ''Halo: Combat Evolved''. They are more adept with vehicles, and are able to drive the [[Warthog]], the [[Ghost (Vehicle)|Ghost]], the [[Wraith]], the [[Spectre]], and the [[Scorpion Tank|Scorpion]], albeit a bit clumsily. They can now melee sleeping Grunts or enemies with their backs turned, a vast improvement over the ''[[Halo: Combat Evolved]]'' Marines, who had to fire their weapons in such situations and ruin operational covertness.
 
However, their firearm prowess has decreased, and most Marines are unable to achieve greater than a 25%-50% hit percentage with semiautomatic weapons such as the [[Covenant Carbine]], and are instead more effective with close-range weaponry such as the [[M7/Caseless Submachine Gun]] or with heavy weaponry such as the [[M19 Rocket Launcher]] or the [[Fuel Rod Cannon]]. Although their friendly fire incidents are decreased, Marines do not use fragmentation grenades in combat, and are unaware of splash damage from heavy weapons, sometimes firing a rocket into a nearby wall and killing themselves in the operation.
 
The Marines are far more interactive, sometimes speaking to each other while in combat and wield a greater variety of weapons. The player can also easily switch weapons with the Marines to make sure that they are well armed or that the player is.  As in ''[[Halo: Combat Evolved]]'', the Marines are aware of backstabbing, and will attempt to kill you after you kill a few of their comrades. The number of Marines that can be killed before the others turn against you oddly seems to vary depending on the weapon used and the way they are shot. For example, taking out three Marines with head shots usually won't make them see you as an enemy, but meleeing three Marines usually does. However, if the player progresses through the level and meets another group of marines a distance away from where the betrayal was performed, they will be marked as allies once again. Also, if the player does not harm any marines who are shooting at him/her for a certain amount of time the Marine(s) will reluctantly return to an allied condition.
 
=== ''[[Halo 3]]'' ===
 
It is unknown what the Marines' abilities will be in ''[[Halo 3]]''. All that is known about them AI-wise is that they are better drivers and more capable of surviving without the player's aid. Also, when a Marine is manning the turret on the Warthog, the player can tell the Marine where to shoot by repeatedly turning or driving in a specific direction, towards another enemy.
 
Their audio clips have also been vastly expanded, and profanity is used to indicate critically wounded status.
 
== List of Marines ==


===''Halo 2''===
*[[Lance Corporal Janet Adams]] '''KIA''', Evacuation of [[Troy]]
<gallery>
*[[Al-Thani]] '''KIA''', [[Battle of Installation 04]]
File:H2_Marine_Concept_1.png|Early concept art of the Marines for ''[[Halo 2]]''.
*[[Staff Sergeant Marcus Banks]] '''ACTIVE DUTY'''
File:H2_Marine_Concept_2.png|Early concept art of the Marines for ''Halo 2''.
*[[Private Bisenti]] '''KIA''', [[Battle of Installation 04]]
File:H2 UNSC Early Render.jpg|Early render of Marines in ''Halo 2''.
*[[Lieutenant Buckman]] '''KIA''', [[Battle of Reach]]
File:H2 MarinesScorpion.jpg|Various appearances of ''Halo 2'' Marines.
*[[Company Sergeant Tink Carter]] '''KIA''', [[Battle of Installation 04]]
File:H2-Marine.png|A cutout of a ''Halo 2'' Marine.
*[[Lieutenant Jake Chapman]] '''KIA''', [[Battle of Reach]]
File:Tactical.png|Marines during the [[Battle of Mombasa|early stages]] of the [[Battle of Earth]] in ''Halo 2''.
*[[Private Cochran]] '''ACTIVE DUTY'''
</gallery>
*[[Sergeant Corly]] '''KIA''', [[Battle of Installation 04]]
*[[Second Lieutenant Dalu]] '''KIA''', [[Battle of Installation 04]]
*[[Dawkins]] '''KIA''', [[Battle of Installation 04]]
*[[Chips Dubbo|Private Chipps Dubbo]] '''ACTIVE DUTY'''
*[[Major Easley]] '''ACTIVE DUTY'''
*[[Corporal C. Errera]] '''KIA''', [[Battle of Reach]]
*[[Private Fincher]] '''ACTIVE DUTY'''
*[[Private First Class M. Fitzgerald]] '''KIA''', [[Battle of Installation 04]]
*[[Lance Corporal Gobi]] '''ACTIVE DUTY'''
*[[Corporal Harland]] '''ACTIVE DUTY'''
*[[Private First Class Hosky]] '''KIA''', [[Battle of Installation 04]]
*[[Private First Class Wallace A. Jenkins]] '''KIA''', [[Battle of Installation 04]]
*[[Sergeant Johnson|Sergeant Major Avery J. Johnson]] '''ACTIVE DUTY'''
*[[Lance Corporal "Snaky" Jones]] '''KIA''', [[Battle of Installation 04]]
*[[Private Kappus]] '''KIA''', [[Battle of Installation 04]]
*[[General Kits]] '''KIA''', [[Battle of Sigma Octanus IV]]
*[[Lindemuth]] '''ACTIVE DUTY'''
*[[Master Sergeant Lister]] '''KIA''', [[Battle of Installation 04]]
*[[Corporal Locklear]] '''KIA''', [[Operation: FIRST STRIKE]]
*[[Corporal Lovik]] '''KIA''', [[Battle of Installation 04]]
*[[Second Lieutenant McCasky]] '''KIA''', [[Battle of Sigma Octanus IV]]
*[[First Lieutenant Melissa McKay]] '''KIA''', [[Battle of Installation 04]]
*[[Private McKenzie]] '''ACTIVE DUTY'''
*[[Private Manuel Mendoza]] '''KIA''', [[Battle of Installation 04]]
*[[Staff Sergeant Marvin Mobuto]] '''KIA''', [[Battle of Installation 04]]
*[[Benjamin M. Nunez|Corporal Benjamin M. Nunez]] '''ACTIVE DUTY'''
*[[Private O'Brien]] '''KIA''', [[Battle of Installation 04]]
*[[Second Lieutenant Oros]] '''KIA''', [[Battle of Installation 04]]
*[[Sergeant Parker]] '''KIA''', [[Battle of Installation 04]]
*[[Corporal Perez]] '''ACTIVE DUTY'''
*[[Private Marie Postly]] '''KIA''', [[Battle of Installation 04]]
*[[Parsons]] '''ACTIVE DUTY'''
*[[Private Riley]] '''KIA''', [[Battle of Installation 04]]
*[[Private Satha]] '''KIA''', [[Battle of Installation 04]]
*[[Major Antonio Shiva|Major Antonio Silva]] '''KIA''', [[Battle of Installation 04]]
*[[Sergeant Stacker (Halo 1)|Sergeant Stacker]] '''KIA''', [[Battle of Installation 04]]
*[[Gunnery Sergeant Pete Stacker]] '''ACTIVE DUTY'''
*[[Major General Nicolas Strauss]] '''ACTIVE DUTY'''
*[[Private First Class]] [[Suzuki]] '''KIA''', [[Battle of Installation 04]]
*[["Doc" Valdez|Medic "Doc" Valdez]] '''KIA''', [[Battle of Installation 04]]
*[[Private Walker]] '''KIA'''
*[[Gunnery Sergeant Waller]] '''KIA''', [[Battle of Installation 04]]
*[[Corporal Wilkins]] '''KIA''', [[Battle of Installation 04]]
*[[Yutrzenika]] '''KIA''', [[Battle of Installation 04]]
*[[Lindemuth]]'''ACTIVE DUTY'''
*[[Master Gunnery Sergeant (Armory)|Unnamed Master Gunnery Sergeant]] '''KIA''', [[First Battle of Earth]]
*[[Unnamed Lieutenant]] '''KIA''', [[Battle of New Mombasa]]
*[[Unnamed Marine Officer]] '''MIA''', [[Battle of New Mombasa|Battle of Mombasa]]


===''Halo 3''===
== Marine Units ==
<gallery>
File:UNSC Marine Corps.PNG|The marines.
File:H3 Marine Concept 1.png|Concept art of the Marines for ''[[Halo 3]]''.
File:H3 Marine Concept 2.jpg|Concept art of a UNSC Marine for ''Halo 3''.
File:H3 Marine Concept 3.jpg|Concept art of a UNSC Marine for ''Halo 3''.
File:H3 Marine Concept 4.jpg|Concept art of a UNSC Marine for ''Halo 3''.
File:UNSC Marines in Halo 3.jpg|Marines operating in the jungle near Voi in ''Halo 3''.
File:H3 Marine Squad.png|A squad of Marines on the Ark in ''Halo 3''.
</gallery>


===''Halo Wars''===
*[[405th Marine Infantry Division]]
<gallery>
**[[17th Marine Regiment]]
File:HW Concept Marines.jpg|Concept art of UNSC Marines in combat with Covenant forces on Harvest in ''Halo Wars''.
**[[77th Marine Regiment]]
File:HW Concept ScarabBattle.jpg|Concept art of UNSC Marines encountering a {{Pattern|Protos|Scarab}} in ''Halo Wars''.
***[["A" Company|Alpha Company]] (Battalion unknown)
File:HWunit Marines.png|UNSC Marines in ''Halo Wars''.
*[[105th Orbital Drop Shock Trooper Division|105th Shock Division]]
File:Unsc icon marines sm.jpg|UNSC Marines engaging Covenant troops in ''Halo Wars''.
**[[7th Orbital Drop Shock Trooper Division|7th ODST Battalion]]
File:HW-UNSCarmyvsbase.png|Vehicles of the UNSC Marine Corps attack a Firebase.
***1st Platoon (Company and Regiment Unknown)
File:NewMarines.jpg|Both the Arctic and standard variations of the [[UNSC Marine Corps Battle Dress Uniform|Marine battledress]] seen in ''Halo Wars''.
*[[105th Drop Jet Platoon]]
</gallery>
*[[Charlie Company]]
*[[Tango Company]]


===''Halo: Reach''===
=== Fire Teams ===
<gallery>
File:HR UNSCLineup Concept 1.jpg|Concept art for UNSC Army, Marine and ODST personnel in ''Halo: Reach''.
File:HaloReach - PoAMarines.jpg|UNSC Marines in ''Halo: Reach''.
File:HR_UNSCMarine_Deployment.jpg|UNSC Marines being deployed during the Fall of Reach.
</gallery>


===''Halo: Combat Evolved Anniversary''===
*[[Fire Team Zulu]]
<gallery>
*[[Fire Team Charlie]]
File:HCEA Johnson&Marines.jpg|UNSC Marines in the ''[[UNSC Pillar of Autumn|Pillar of Autumn]]'' in ''[[Halo: Combat Evolved Anniversary]]''.
File:HCEA_PillarOfAutumn_Marines.png|UNSC Marines defending the ''Pillar of Autumn''.
File:HCEA FireTeamCharlieVsCovies.png|UNSC Marines battling Covenant forces on the surface of [[Installation 04]].
File:HTMCC-HCEA Terminal 3.jpg|UNSC Marines on the [[bridge]] of the {{Pattern|Ket|battlecruiser}} ''[[Truth and Reconciliation]]''.
File:HCEA WallerBeachAssault.png|UNSC Marines attacking Covenant forces during the [[Battle of the Silent Cartographer]].
File:HCEA ZuluVsCovies.png|UNSC Marines battling Covenant near Installation 04's [[Control Room (Installation 04)|control room]].
</gallery>


===''Halo 4''===
==List of Marine Quotes==
<gallery>
File:H4 marine helmet.jpg|Concept of Halo 4 Marines before taking a different direction.
File:H4heads4.jpg|Models of UNSC Marines in ''[[Halo 4]]''.
File:H4-UNSCMarine-ScanRender.png|Portrait of a standard UNSC Marine in the postwar BDU.
File:H4-UNSCMarineVariants.jpg|Postwar BDU variants of other UNSC Marine classes.
File:H4 SpOps LandGrab ThirdPerson 02.jpg|A UNSC Marine holding a rocket launcher in ''Halo 4''.
File:H4 SO MagmaBaseGenerator 2.png|A fireteam of UNSC Marines protecting [[Magma Base]].
File:UNSC Marine - Spartan Ops.png|Profile of a UNSC Marine in ''Halo 4''.
File:UNSC Marine - Halo 4 - Cinematic.png|A close-up of a UNSC Marine in [[New Phoenix]] in ''Halo 4''.
</gallery>


===''Halo 2: Anniversary''===
{{Quotes Link}}
<gallery>
File:H2AMarines.jpg|Marines aboard a D77-TC Pelican in ''[[Halo 2: Anniversary]]''.
File:H2ACampaign CairoMarines.png|A Marine squad aboard ''Cairo Station'' in ''[[Halo 2: Anniversary]]''.
File:H2ACampaign CairoMarineGunner.png|A Marine gunner engages the Covenant aboard ''Cairo Station'' in ''[[Halo 2: Anniversary]]''.
File:UNSC marine BDU (Halo 2 A) 4.png|Marines on Installation 05 in ''Halo 2: Anniversary''.
File:UNSC marine American2.png|A Marine armed with an M7 SMG in ''Halo 2: Anniversary''.
File:H2A-Marines.png|Marines after being rescued by John-117 aboard ''[[High Charity]]'' in ''Halo 2: Anniversary''.
File:H2A-Marinewithplasmarifle.png|A Marine aboard ''High Charity'' in ''Halo 2: Anniversary''.
File:H2A TerminalMarine Concept.jpg|A Marine in the [[Terminal (Halo 2: Anniversary)|Terminals]].
</gallery>


===''Halo 5: Guardians''===
== Trivia ==
<gallery>
File:H5G-MarinesvsPhaeton.png|A group of [[War Games]] simulated Marines preparing to engage a [[Phaeton]].
File:H5G-RedMarine.png|Red Team Marine.
File:H5G-BlueMarine.png|Blue Team Marine.
File:Marine H5.png|A marine in the ''[[Halo 5: Guardians]]'' campaign.
</gallery>


===''Halo Wars 2''===
*In ''[[Halo: Combat Evolved]]'', the Marine's faces were modeled on [[Bungie]] employees.
<gallery>
*Bungie went to great lengths to ensure that the Marines reflected the diversity of Earth; some Marines look and sound American, while others appear [[wikipedia:Asian|Asian]], [[wikipedia:African|African]],[[wikipedia:Australian|Australian]], [[wikipedia:Hispanic|Hispanic]] and [[wikipedia:Italian|Italian]].
File:HW2B Marines.png|Marines in the ''[[Halo Wars 2 Open Beta]]''.
*In the ''[[Halo: Combat Evolved]]'' level [[Truth and Reconciliation (Level)|"Truth and Reconciliation"]], [[Jacob Keyes|Captain Keyes]] tells a Marine to "Stow your belly aching...! Remember you're a leatherneck." [[Wikipedia:Leatherneck|Leatherneck]] was a nickname earned by [[wikipedia:US Marines|U.S. Marines]] in the 19th century.
File:HW2-concept-Marines.jpg|''Halo Wars 2 Open Beta'' concept art of a UNSC Marine.
*Rarely, after a Marine is killed in Halo 2, his/her eyes will continue to blink.
File:HW2 Blitz Marines.png|Marines in ''Halo Wars 2''.
File:HW2 Blitz Extractor Marines.jpg|Extractor Marines in ''Halo Wars 2''.
File:HW2 Blitz Armored Marines.png|Armored Marines in ''Halo Wars 2''.
File:HW2 Blitz Reactive Marines.png|Reactive Marines in ''Halo Wars 2''.
</gallery>


===''Halo Infinite''===
== Image gallery ==
<gallery>
File:HINF-ConceptMarines.jpg|Concept art of UNSC Marines for ''[[Halo Infinite]]''.
File:HINF Concept CavalryHasArrived.jpg|Early ''Halo Infinite'' concept art showing Marines fighting through [[Aggressor Sentinel]]s to reach John-117.
File:HI_E318_Marines.png|Marines in the [[Halo Infinite announcement trailer]].
File:HINF Marine Transparent.png|A marine in ''Halo Infinite''.
File:HINF Marines Render.png|A render of two Marines.
File:HINF MarineSquad.png|Marines on Installation 07 in front of a FOB.
HINF MarinesVsBanshee.png|Marines defending a FOB from a Banished Banshee.
File:HINF MarineAssault.png|A marine armed with an [[MA40 assault rifle|MA40]].
File:HINF MarineHeavyAssault.png|A marine armed with a [[BR75 battle rifle|BR75]] for heavy assault.
File:HINF MarineScout.png|A marine scout wielding a [[VK78 Commando]].
File:HINF MarineBreacher.png|A marine breacher wielding a [[CQS48 Bulldog]].
File:HINF MarineSniper.png|A marine sniper wielding a [[SRS99-S7 AM sniper rifle]].
File:HINF MarineDemolition.png|A marine armed with an [[M41 SPNKr]] for demolition.
</gallery>


===''Miscellaneous''===
<gallery>
<gallery>
File:Homecoming Marine Concept.png|Concept art of a marine in ''[[Halo Legends]]: [[Homecoming]]''.
Image:MarineArmoredUniform.jpg|Marine Battle Armor  
File:MarineAvatar.png|M52B Armor being worn by an [[Xbox LIVE]] Avatar; available for purchase in the Avatar Marketplace along with miscellaneous ''Halo''-related items.
Image:MarineFatiguesUniform.jpg|Marine fatigue uniform.
File:HRoa 1 prep.png|UNSC Marines in ''[[Halo: Rise of Atriox]]''.
File:FH4 - Marine in M12S.png|A UNSC Marine driving a [[M12S Warthog CST]] in ''[[The Halo Experience Showcase]]''.
File:Enc22 MakingCamp.jpg|Marines making camp on [[Installation 07]] in the ''[[Halo Encyclopedia (2022 edition)]]''.
</gallery>
</gallery>


==List of appearances==
== Sources ==
{{Col-begin}}
{{Col-3}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo Graphic Novel]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo: Landfall]]''
**''[[Halo: Arms Race]]''
**''[[Halo: Combat]]''
**''[[Halo: Last One Standing]]''
*''[[Halo: Uprising]]''
*''[[Halo 3]]''
*''[[Halo: Contact Harvest]]
*''[[Halo: The Cole Protocol]]''
*''[[Halo Wars: Genesis]]''
*''[[Halo Wars]]''
*''[[Halo: Helljumper]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
**''[[Homecoming]]''
**''[[Origins]]''
**''[[Prototype]]''
**''[[The Babysitter]]''
*''[[Halo: Evolutions]]''
**''[[Palace Hotel]]''
**''[[The Mona Lisa]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
{{Col-3}}
*''[[Halo: Glasslands]]''
*''[[Halo: Combat Evolved Anniversary]]''
**''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
*''[[Halo: The Thursday War]]''
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
**''[[Infinity Briefing Packet]]'' {{Mo}}
*''[[Halo: Spartan Assault]]''
*''[[Halo: Initiation]]''
*''[[Halo: Escalation]]''
*''[[Halo: Mortal Dictata]]''
*''[[Halo 2: Anniversary]]''
**''[[Terminal (Halo 2: Anniversary)|Terminals]]''
*''[[Halo: New Blood]]''
*''[[Halo: Spartan Strike]]''
*''[[Halo: Hunters in the Dark]]''
*''[[Halo: Fleet Battles]]'' {{Mo}}
*''[[Halo: Last Light]]''
*''[[Halo: The Fall of Reach - The Animated Series]]''
*''[[Halo 5: Guardians]]''
**''[[Halo 5: Guardians Limited Edition dossiers|Limited Edition dossiers]]'' {{Mo}}
*''[[Know Your Enemy]]''
*''[[Halo: Ground Command]]''
*''[[Halo Mythos]]''
*''[[Halo: Smoke and Shadow]]'' {{Mo}}
*''[[Halo Wars 2]]''
*''[[Halo: Envoy]]''
*''[[Halo: Rise of Atriox]]''
{{Col-3}}
*''[[Halo: Legacy of Onyx]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Bad Blood]]''
*''[[Halo: Silent Storm]]''
*''[[Halo: Official Spartan Field Manual]]''
*''[[Halo: Renegades]]'' {{Mo}}
*''[[Halo: Meridian Divide]]
*''[[Halo: Shadows of Reach]]''
*''[[Become]]''
**''[[Forever We Fight]]''
*''[[Halo Infinite]]''
*''[[Halo: The Television Series Season One]]''
**''[[Contact]]''
**''[[Unbound]]''
**''[[Emergence]]''
**''[[Reckoning]]''
**''[[Solace (TV Series)|Solace]]''
**''[[Inheritance]]'' {{Mo}}
**''[[Allegiance]]''
**''[[Transcendence]]''
*''[[Halo: The Rubicon Protocol]]''
*''[[Halo: Outcasts]]''
*''[[Halo: Saturn Devouring His Son]]''
*''[[Halo: Hippocratica]]''
*''[[Halo: The Television Series Season Two]]''
**''[[Sanctuary (TV Series)|Sanctuary]]''
**''[[Sword (TV Series)|Sword]]''
{{Col-end}}
 
==Sources==
{{Ref/Sources|2}}


{{United Nations Space Command}}
<references/>


[[Category:UNSC Armed Forces|Marine Corps]]
[[Category:UNSC]]
[[Category:Organizations]]

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