Editing Battle of Installation 00

{{Era|HCW}}
{{Battle Infobox
|prev=[[Battle of Earth]]
|conc=[[Battle of the Citadel]]
|next=[[Raid on High Charity|Raid on ''High Charity'']]
|name= Battle of Installation 00
|image=[[Image:H3 E3 Orbital Battle.jpg|350px]]
|conflict=[[Human-Covenant War]], [[Great Schism]]
|date= [[2552#December|December 11, 2552]]<ref name="Fortitude">[http://halo.xbox.com/en-us/intel/featured/video/herofortitude/bfe5038b-314a-4f17-a6be-f7613e0e3788 '''Halo Waypoint''': ''Hero-Fortitude'']</ref>
|place= [[Installation 00]] (the "Ark")
|result= Decisive [[United Nations Space Command|UNSC]]/[[Covenant separatists|Covenant separatist]] victory 
*Death of Prophet of Truth and Gravemind 
*End of the Human-Covenant War 
*Overall collapse of the Covenant Empire.
*Flood forces completely wiped out
*Destruction of [[Installation 04B]]<ref name="halo">'''Halo 3''', campaign level ''[[Halo (Halo 3 level)|Halo]]''</ref> and [[Installation 00]]<ref name="Array">[http://halo.xbox.com/en-us/intel/featured/video/the-halo-array/7ec5ea56-3d8c-4644-a760-5baa8f35166c '''Halo Waypoint:''' ''The Halo Array'']</ref>
|side1=[[United Nations Space Command|UNSC]]/[[Covenant separatists]]
|side2=[[Covenant Empire]]
|side3=[[The Flood]]
|side4=[[Sentinel]]s
|commanders1=*[[Commander|CDR]] [[Miranda Keyes]]†
*[[Sergeant Major|SgtMaj]] [[Avery Junior Johnson|Avery Johnson]]†
*[[Master Chief Petty Officer|MCPO]] [[John-117]]([[Missing in action|MIA]])
*[[Arbiter]] [[Thel 'Vadam]]
*[[Shipmaster]] [[Rtas 'Vadum]]
*[[Cortana]] (MIA)
|commanders2=*[[Prophet of Truth|High Prophet of Truth]]†
|commanders3=*[[Gravemind]]†
|commanders4=*[[343 Guilty Spark]]†
|forces1=*[[Fleet of Retribution]]/[[UNSC Home Fleet|Home Fleet]]
**''[[Shadow of Intent]]''
**9 [[CCS-class battlecruiser|CCS-class Battlecruisers]]
***''[[Pious Inquisitor]]''
**{{UNSCShip|Forward Unto Dawn}}
**{{UNSCShip|Aegis Fate}}
** [[GA-TL1 Longsword|Longsword]] fighters
** [[D77-TC Pelican|Pelican]] Dropships
** [[Type-52 Troop Carrier|Phantom]] Dropships
*Ground forces
**[[UNSC Marine Corps]]
***[[M/LAT-16]]
***[[S/VRC-8]]
***[[S4/BLCE/1/7]]
***[[S4/BRT/1/7]]
****[[Alpha Company, S4/BRT/1/7|Alpha Company]]
****[[Charlie Company, S4/BRT/1/7|Charlie Company]]
***[[Orbital Drop Shock Trooper]]s
****[[11th Marine Force Reconnaissance/ODST|11th MFR/ODST]]
**[[Sangheili]]
|forces2=*[[Truth's fleet]]
**3 [[Covenant assault carrier|Assault carrier]]s<ref name="theark"/>
**27 [[CCS-class battlecruiser]]s<ref name="theark"/>
**Many [[Type-31 Exoatmospheric Multi-role Fighter|Seraph]] fighters
**Many [[Type-52 Troop Carrier|Phantoms]]
**[[Forerunner Dreadnought]]
*Ground forces
**[[Jiralhanae]]
**[[Kig-yar]]
**[[Unggoy]]
**[[Yanme'e]]
**[[Mgalekgolo]]
|forces3=*[[High Charity]]
*Numerous [[The Flood|Flood]] forms
|forces4=*Numerous Sentinels
|casual1=
*Moderate amount of Sangheili and Human ships
**''Forward Unto Dawn''
*Numerous infantry losses.
|casual2=*Most, if not all ships
*Most ground forces
|casual3=*All
|casual4=*Nearly all Sentinels
}}
{{Quote|Our fight is through the Portal, with the Brutes and the bastard Truth!|[[Shipmaster]] [[Rtas 'Vadum]]<ref>'''Halo 3''', campaign level ''[[Floodgate]]''</ref>}}

The '''Battle of Installation 00''' was a large battle between the [[United Nations Space Command|UNSC]]-[[Covenant separatists|Covenant separatist]] alliance, [[Covenant Empire|the Covenant]], [[the Flood]], and [[Forerunner]] [[Sentinel]]s on [[2552#December|December 11, 2552]].<ref name="Fortitude"/><ref name="theark">'''Halo 3''', campaign level, ''[[The Ark (level)|The Ark]]''</ref><ref name="cov">'''Halo 3''', campaign level, ''[[The Covenant (level)|The Covenant]]''</ref><ref name="halo"/> It was the final battle of the [[Human-Covenant War]].<ref name="epi">'''Halo 3''', ''Epilogue''</ref> This battle and the last stand of the Covenant marked one of the few major engagements in the entire war in which the Covenant were on the defensive.

==Background==
===Battle of Installation 04===
{{Main|Battle of Installation 04}}
During the [[Battle of Installation 04]], [[Cortana]] intercepted the [[Installation]]'s [[Activation Index|Index]] as it was being inserted by [[John-117|Spartan-117]]. She continued to hold on to it after she had been removed from the Installation's [[Control Room]]. She also had spent over twelve hours inside the Control Room's computer, gaining an incredible amount of information about the [[Halo Array|Halo]] installations, making her possibly the most knowledgeable regarding the operation of the Halo rings, the Forerunners and the Ark perhaps even more so than [[343 Guilty Spark]] who admitted he was quite ignorant of the [[Forerunner]] structures beyond Installation 04.

===Battle of Installation 05===
{{Main|Battle of Installation 05}}
The [[Battle of Installation 05]] included many events that would become major factors in the Battle of Installation 00.

The [[United Nations Space Command|UNSC]] [[Artificial intelligence|AI]], [[Cortana]], remained aboard the [[Covenant Empire|Covenant]] holy city, ''[[High Charity]]'' as the Flood and its central consciousness, the [[Gravemind]], took control of it. From there, the Gravemind interrogated her, and she willingly answered its questions.

The aborted activation of Installation 05 had set all of the Halo rings to standby, where they could be activated from the central location of the [[Installation 00|Ark]].

Finally, the [[Covenant Empire|Covenant]] civil war, termed the [[Great Schism]], and the [[human]]-separatist alliance began in the space around Installation 05.

===Battle of Earth===
{{Main|Battle of Earth}}
The [[Prophet of Truth|High Prophet of Truth]] had arrived on [[Earth]] with the rest of his fleet, to complete the digging of a [[The Portal|Forerunner structure]] under the planet surface. Eventually they uncovered and activated it, opening a [[slipspace portal]] that would take them to the [[Installation 00|Ark]], a Forerunner structure from which Truth can fire all of the Halo installations at once. As he departed through the Portal, a [[The Flood|Flood]]-[[Unidentified Flood-captured battlecruiser|captured ship]] arrived on Earth and crashed. From it, John and the Arbiter were able to extract a message from [[Cortana]], alerting them that ''[[High Charity]]'' was heading for Earth and indicating that the solution to the problem of the Flood lay beyond the portal.

While [[Terrence Hood|Lord Hood]] was suspicious of [[Cortana]]'s warning and objected to going through the portal, [[Commander]] [[Miranda Keyes]], Spartan-117 and [[Shipmaster|Ship Master]] [[Rtas 'Vadum]] all indicated their wish to proceed through the Portal. Lord Hood gave Miranda Keyes command of the ''[[UNSC Forward Unto Dawn|Forward Unto Dawn]]'' for the human commitment to the mission and the fleet of ships chased after the High Prophet of Truth.

==Battle==
{{Quote|Brute ships. Staggered line! Shipmaster, they outnumber us, three-to-one!|Sangheili Major}} 
{{Quote|Then it is an even fight. All cruisers, fire at will! Burn their mongrel hides!|Shipmaster Rtas 'Vadum}}

The High Prophet of Truth, having successfully activated the artifact in [[Voi]], left Earth through a slipspace portal to the Ark, a Forerunner structure that can be used to fire all of the Halo installations at once. Despite Lord Hood's skepticism, Commander Keyes took the ''Forward Unto Dawn'' with a small fleet of separatist [[cruiser]]s led by the [[Covenant assault carrier|assault carrier]] ''[[Shadow of Intent]]'' and proceeded through the Slipspace portal, arriving at the Ark. The Separatists immediately engaged the [[Jiralhanae|Brute]] fleet stationed to protect the [[Hierarchs|Prophet]] while the ''Dawn'' deployed the [[John-117|Master Chief]] and [[Orbital Drop Shock Trooper]]s in six [[D77-TC Pelican|Pelicans]] to locate Truth. Despite being outnumbered three-to-one in space, the Separatist fleet made short work of the Covenant space forces, likely due to the [[Sangheili]]'s remarkable tactical adeptness. The Covenant loyalist fleet had been destroyed and the only loyalists left alive were Truth and his forces on the Ark. Also, presumably Truth landed the [[Forerunner Dreadnought]] on the Ark although it was never seen again and was specifically said not to take part in the battle above the Ark.<ref name="theark"/>

[[File:923831-Full.jpg|thumb|200px|Truth's Jiralhanae fleet confronts the Sangheili Fleet of Retribution]]

===Operation: BLIND FAITH===
As part of an operation called Operation: BLIND FAITH,<ref>'''Halo Encyclopedia''', ''page 57'', "11th Marine Force Reconnaissance Unit/ODST" within "ODST Units"</ref> five of the Pelicans deployed by the human [[UNSC frigate|frigate]]s had made it to the Ark. The Master Chief and four [[Orbital Drop Shock Trooper|ODSTs]] were deployed, ambushing a group of [[Jiralhanae|Brutes]], [[Unggoy|Grunts]], and [[Kig-yar|Jackals]] listening to a message from Truth. They then proceeded to ambush another group of Covenant loyalists building an Anti-Aircraft Gun. They entered a small cave, where the Chief first accessed the Forerunner [[Terminal]] network. On the other side of the cave they met a pair of [[UNSC Marine Corps|Marine]] survivors from a second shot down Pelican and witnessed a [[GA-TL1 Longsword|Longsword]] fighter crashing. After being informed of a possible landing zone for the ''Forward Unto Dawn'', the humans ambushed the Brutes and Grunts searching the crashed Pelican, then destroyed a pair of [[Type-52 Infantry Support Vehicle|Brute Prowlers]] that attacked. Now with [[M274 Ultra-Light All-Terrain Vehicle|Mongooses]] and Prowlers, they continued past the crashed Longsword, a pair of [[Single Occupant Exoatmospheric Insertion Vehicle|HEVs]] that had landed and had the ODST's which had once occupied them killed once they left their pods, and a crashed [[Type-52 Troop Carrier|Phantom]] to a battle between Covenant and Sentinels outside a Forerunner barrier. [[Avery Junior Johnson|Avery J. Johnson]] informed that he had spotted a structure that was similar to the [[Cartographer]] of Installation 04 on the other side of the wall, and Keyes set it as their objective. The ''Dawn'' would need to land first however. After meeting another group of Marines being attacked, the vehicles led by the Chief then moved to the sighted Landing Zone, which was occupied by a pair of Anti-Air Wraiths. After they cleared the LZ, the ''Dawn'' disengaged from the space battle and dived onto the surface of the installation, landing safely.<ref name="theark"/>

[[Image:Ark Level Scorpion.jpg|thumb|left|200px|UNSC ground forces battling in the desert.]]

From the ''Dawn'''s hangar, the Master Chief, ODSTs, and Marines were reinforced with two [[M808B Main Battle Tank|Scorpion]] tanks and a [[M12 Force Application Vehicle|Warthog]]. The human force then fought their way through a large reinforcements force back to the Forerunner wall. The Chief went through the upper, smaller doorway while the armor and vehicles (reinforced with one more Warthog and a [[M12G1 Light Anti-Armor Vehicle|Gauss Warthog]]) went through the larger, lower doorway. After activating a light bridge the [[Spartan]] went through the wall, only to see a [[Type-47 Ultra Heavy Assault Platform|Scarab]] and a Covenant armored force destroy the Warthogs. He then fought his way to the lower doorway, which then finally opened fully, letting the tanks through. [[Sergeant]] [[Stacker]] and the Chief led the [[M808B Main Battle Tank|Scorpions]] and a [[M12 Force Application Vehicle|Warthog]] through two Covenant defense lines of [[Type-25 Rapid Assault Vehicle|Choppers]], [[Type-32 Rapid Assault Vehicle|Ghosts]], [[Type-26 Assault Gun Carriage|Wraiths]], and infantry with heavy weapons, reinforced by a Phantom. When the Scarab returned, the humans then proceeded to destroy it, plus the Choppers and infantry reinforcing it. By now the Elites had defeated the entirety of Truth's remaining fleet. The ''[[Shadow of Intent]]'', landed near the Cartographer.<ref name="theark"/> Rtas 'Vadum likely ordered all his remaining ships except for the ''Shadow of Intent'' to go back to [[Earth]] and wait for his return.

[[File:Banshee cov.jpg|thumb|200px|Covenant air forces engaging UNSC/Sangheili forces.]]

[[343 Guilty Spark]], now working with the UNSC-separatist alliance, led [[John-117|Spartan-117]] and the Arbiter [[Thel 'Vadam]], plus a pair of Marines, to the Ark's Cartographer. Fighting their way through several incompetent and unprepared forces that were asleep, they get back outside where they pinpointed the Prophet's location. By then Truth had already holed himself in a secure facility in the core of the Ark and had activated a large barrier around the entire core to ward off the attacking forces. After discovering Truth's location, the UNSC-separatist troops were attacked by a large Covenant air force. Johnson led the air battle against them, and 'Vadam stole a [[Type-26 Ground Support Aircraft|Banshee]] to help him. The Chief, with the pair of Marines, fought his way past a group of [[Jiralhanae Stalker|Stalker Brutes]]. He then dueled with a [[Jiralhanae Chieftain|Brute Chieftain]] and defeated squad of [[Jump Pack Jiralhanae|Jump Pack Brutes]] before being picked up by Pelican [[Kilo 023]] after the Covenant air force was dealt with. The humans and Elites set forth to attack Truth to stop him from activating the rings.<ref name="theark"/>

===Battle of the Citadel===
{{main|Battle of the Citadel}}
[[Image:Trident11.jpg|thumb|right|250px|[[Human]] and Elite forces begin their assault on Truth.]]

The UNSC ground forces, carried in five Pelicans, along with Sangheili reinforcements in a pair of green Phantoms, assaulted three emitter pylons that powered a small section of the barrier. The Master Chief and a small squad of three of [[Orbital Drop Shock Trooper|ODSTs]] were deployed a distance from the first tower by a Pelican after hostile fire shot down a second Pelican carrying Marines and a Warthog. The crashing Pelican also took out the ODSTs' Warthog. [[Thel 'Vadam]] and Elites assaulted the second tower. Sergeant Johnson took four Marines and attacked the final tower. Clearing the Covenant loyalist heavy weapons on the beach, a new Warthog and a Mongoose were deployed and taken through heavy resistance to the tower. Clearing it, the Chief learned that the separatists had taken down the second tower, but Johnson had been ambushed by enemy reinforcements. The Chief returned to the beach, commandeered a [[AV-14 Hornet|Hornet]] and helped destroy Covenant Banshees and a Phantom, securing air control for the UNSC-Sangheili forces outside the barrier. Destroying the Brute defenders outside the third tower with Hornets and Pelicans, Master Chief, Thel 'Vadam, and a team of five Elites discovered the corpses of the Marine team, except for Johnson's. When the defending forces were eliminated and the barrier deactivated, the ''Shadow of Intent'' prepared to bombard the Citadel, but was prevented from doing so by the arrival of the [[The Flood|Flood]]-infested ''[[High Charity]]'', which launched debris that crippled the Sangheili carrier and spread Flood across the Ark. Keyes insisted that this would only pressure Truth into activating the rings, and ordered the remaining forces to attack him directly.

Fighting through a group of Flood, the Elites and the Chief met up with Sergeant Stacker's Marines, supported by a Scorpion, a Gauss Warthog, and a Mongoose. The humans and Elites fought through the cliffs to the area outside the [[Citadel]], the structure which could remotely activate all of the [[Halo Array]]. The Covenant attempted to reinforce their troops by a large amount of Phantom transports gathered from around the installation, but the UNSC air forces countered this by attacking the Phantoms and their Banshee escorts with Hornets and Pelican Gunships. The ground forces managed to destroy the remaining Covenant armor on the mountainside. Given another Gauss Warthog and air support from a flight of Hornets and a Pelican, the Marines destroyed Banshees, Ghosts, a Prowler, plus a pair of Scarabs dropped in front of the Citadel by Brutes. After the destruction of the Scarabs, the Covenant had lost their grip on the Citadel area. Without any heavy support, Spartan-117 and 'Vadam personally attacked the facility where Truth was to activate the Halo installations.<ref name="cov"/>

[[File:Scarab explodes.jpg|thumb|right|250px|The Covenant ground forces are defeated.]]

[[Sergeant Major]] Johnson, who had disappeared during the assault, was in fact captured by Truth's forces and was being tortured into pressing the final switch to activate the other Halos. With Spartan-117 and the Arbiter too far away to stop High Prophet of Truth, Commander Keyes grabbed a Pelican dropship and crashed into the facility to rescue Johnson, but was killed soon after by Truth himself. However, her actions delayed Truth long enough for Spartan-117 and the Arbiter to stop him. The [[Gravemind]] dispatched Flood forces to assist Spartan-117 and the Arbiter in preventing the Halos' activation and the Arbiter personally killed Truth. However, the Gravemind betrayed them soon after and while Johnson managed to escape with Commander Keyes' body in the Pelican, Spartan-117 and the Arbiter had to fight their way outside with the assistance of some Sentinels. 

[[File:TruthDeath-large.jpg|thumb|right|Arbiter killing the Prophet of Truth.]]
343 Guilty Spark had managed to facilitate the making of a new Halo through the Ark, explaining that a tactical pulse from it would eliminate the Flood infestation. However, this new Halo lacked an Activation Index. The only way they could get another Index was to rescue Cortana from ''High Charity'' since she still possessed the Index from Installation 04.<ref name="cov"/> 

Johnson picked up the Arbiter and the Chief while Guilty Spark went off to the new Installation. The party then headed to the Shadow of Intent, where Johnson, 'Vadam, and Ship Master 'Vadum rounded up the UNSC and Sangheili forces. Meanwhile, Master Chief [[Raid on High Charity|infiltrated]] ''High Charity'', successfully recovering Cortana and the Index and sabotaging the city's reactors. He escaped with the help of 'Vadam and fled onboard a crashed Pelican as the station exploded, ostensibly destroying the Gravemind.<ref>'''Halo 3''', campaign level ''[[Cortana (level)|Cortana]]''</ref>

===Finishing the fight===
{{Main|Raid of Installation 04B}}
With the Index secure, Thel 'Vadam ordered Rtas 'Vadum (who has safely evacuated humans and Sangheili back onboard the ''[[Shadow of Intent]]'') to escape back through the slipspace portal to Earth while he, Spartan-117, and Sergeant Major Johnson moved in on the Control Room of the incomplete Halo. The ''Dawn'' was left behind for them to use to escape. The Gravemind, meanwhile, had begun to rebuild itself on the new ring, and sent [[Flood dispersal pod]]s to kill the three interlopers. The Chief, 'Vadum, and Johnson, with the assistance of local [[Sentinel]]s and 343 Guilty Spark, fought through the Flood and entered the Control Room. Spark explained that the new Halo would be ready to fire within days, to which the group, particularly Johnson, protested. When Guilty Spark informed the three that activating Halo now would destroy both the Ark and the installation, Johnson told him to "deal with it" and prepared to activate the ring.<ref name="halo"/>

{{Quote|Send me out, with a bang.|[[Avery Junior Johnson|Johnson]]'s last words}}

Unwilling to let "his" ring be destroyed again, 343 Guilty Spark went rampant, mortally wounded Johnson, took down Spartan-117's shields and blew the Arbiter out of the room. However, with the help of a dying Sergeant Johnson and his [[M6 Grindell/Galilean Nonlinear Rifle|Spartan Laser]], Spartan-117 managed to destroy Guilty Spark and start the firing sequence of the new Halo. He and the Arbiter then took Johnson's Warthog and rushed towards the ''Dawn'' as the incomplete Halo powered up and started breaking apart. The two drove their way through hordes of battling Flood and [[Sentinel]] drones, with the world literally falling to pieces around them. The two heroes made it onto the ''Dawn'', where the Arbiter was almost crushed by a Scorpion Tank due to the sudden acceleration of the ship. Agility and a pair of crates saved him. Spartan-117 then inserted Cortana into a holotank and she activated the ''Dawn's ''engines. The Arbiter made his way to the bridge of the ''Dawn'' and took her into Slipspace just as the new Halo fired, with Master Chief almost being crushed by the same tank which descended through the cargo hold and into space.<ref name="halo"/> However, the Slipspace portal collapsed as the ''Dawn'' entered it and while the forward half with the Arbiter made it to Earth, the rear half fell out of Slipspace with Cortana and Spartan-117 floating into the dark abyss.

The Battle of the Ark ended the Human-Covenant War. Months later, a monument was erected near the remains of [[Voi]] in remembrance of those who died in the line of duty including Spartan-117 who is labeled [[Missing in action|MIA]]. The Arbiter, the Shipmaster and their brethren then departed Earth for [[Sanghelios]].<ref name="epi"/>

==Aftermath==
{{Quote|For us, the storm has passed. The war is over. But let us never forget those who journeyed into the howling dark, and did not return. For their decision required courage beyond measure; sacrifice, and unshakable conviction that their fight, our fight, was elsewhere. As we start to rebuild, this hillside will remain barren. A memorial to heroes fallen. They ennobled all of us, and they shall not be forgotten.|[[Fleet Admiral]] [[Terrence Hood]] in the memorial ceremony}}

===Installation 00 and the Flood===
The firing of the Halo ring completely obliterated the Ark while killing the Flood forces around Installation 00, including the Gravemind commanding the massing Flood amid the battle.<ref name="Array"/>

===''Forward Unto Dawn''===
The Portal between [[Installation 00]] and Earth collapsed while ''[[UNSC Forward Unto Dawn|Forward Unto Dawn]]'' was still inside it. As a result, the ship was cut in half; the front arriving at Earth and the back half being lost in space. The Arbiter, sitting on the bridge at the time, was part of the front half but, without any engines, soon crashed. However, Spartan-117 and Cortana were in the rear half and were missing.

It is known that Cortana and [[John-117|Spartan-117]] survived the Portal's collapse. Spartan-117 went into a cryo-chamber while Cortana activated an [[emergency locator beacon]] indicating their status. After drifting in an unknown region of space for at least 5 years, the rear half of the ''Dawn'' was caught in the [[gravity well]] of a Forerunner [[shield world]] known as [[Requiem]].<ref name="epi"/>

===Legacy===
A monument was made near the town of Voi where the Forerunner artifact had been built. It reads "''In memory of those fallen in the defense of Earth and her Colonies. [[2553|March 3, 2553]].''" On it were the pictures of the most outstanding UNSC personnel who went through the Portal but did not return. Spartan-117 is honored on it by a "117" scratched onto the monument and a [[Master Chief Petty Officer of the Navy]] badge taped on the monument.

The Sangheili overlooked the [[Voi Memorial]], with Thel 'Vadam being the only to attend due to fighting alongside SPARTAN-117. After the ceremony, he and Lord Hood, who still can't forgive the Sangheili for what they did to Humanity at the beginning of the war, declare friendship after both of their races fought alongside the other at the Ark. He then departed to the ''Shadow of Intent'' via Phantom, and joined [[Rtas 'Vadum]] on the bridge, both agreeing to return to [[Sanghelios]] to "know that it is safe". Thel 'Vadam was given command of the carrier and all Sangheili onboard departed for their homeworld.<ref name="epi"/>

==Participants==
{{Col-begin}}
{{col-2}}
===Ships===
'''UNSC'''
*{{UNSCShip|Forward Unto Dawn}}
*{{UNSCShip|Aegis Fate}}

'''Covenant separatists'''
*''[[Shadow of Intent]]''
*''[[Pious Inquisitor]]''

===Units===
'''UNSC'''
*[[UNSC Home Fleet]]
*[[105th Shock Troops Division|105th ODST Division]]
**[[7th Shock Troops Battalion|7th ODST Battalion]]
**[[11th Marine Force Reconnaissance/ODST]]
*[[M/LAT-16]]
*[[S/VRC-8]]
*[[S4/BLCE/1/7]]
*[[S4/BRT/1/7]]
**[[Alpha Company, S4/BRT/1/7|Alpha Company]]
**[[Charlie Company, S4/BRT/1/7|Charlie Company]]

'''Covenant separatists'''
*[[Fleet of Retribution]]

'''Covenant'''
*[[Truth's fleet]]

{{col-2}}

===Personnel===
'''UNSC'''
*[[Commander]] [[Miranda Keyes]]
*[[Master Chief Petty Officer]] [[John-117]]
*[[Cortana]]
*[[Lieutenant]] [[Hocus]]
*[[Sergeant Major]] [[Avery Junior Johnson]]
*[[Gunnery Sergeant]] [[Reynolds]]
*[[Gunnery Sergeant]] [[Stacker]]
*[[Staff Sergeant]] [[Banks|Marcus Banks]]
*[[Private First Class]] [[Chips Dubbo]]

'''Covenant separatists'''
*[[Shipmaster]] [[Rtas 'Vadum]]
*[[Arbiter]] [[Thel 'Vadam]]

'''Covenant'''
*[[Prophet of Truth]]

'''Forerunner'''
*[[343 Guilty Spark]]
*[[05-032 Mendicant Bias|032 Mendicant Bias]]

'''Flood'''
*[[Gravemind]]

{{col-end}}

==List of appearances==
*''[[Halo 3]]'' {{1st}}
*''[[Halo: First Strike]]'' {{Mo}}
*''[[Halo Legends]]''
**''[[Origins]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
**''[[From the Office of Dr. William Arthur Iqbal]]'' {{Mo}}

==Sources==
<references/>

{{Human-Covenant War}}
[[Category:Battle|Installation 00]]
[[Category:Human-Covenant War]]
[[Category:UNSC Victories]]
@@ Line 1: / Line 1: @@
-{{Status|Canon}}
+{{Era|HCW}}
-{{disambig header|the final battle of the [[Human-Covenant War]]|other battles on Installation 00|Battle of Installation 00 (disambiguation)}}
+{{Battle Infobox
-{{Battle infobox
+|prev=[[Battle of Earth]]
-|prev=*[[Battle for Earth]]
+|conc=[[Battle of the Citadel]]
-**[[Operation: MARSH FLASH]]
+|next=[[Raid on High Charity|Raid on ''High Charity'']]
-|conc=[[Operation: SUNSPEAR]]
+|name= Battle of Installation 00
-|next=[[Raid on UNSC Infinity]]
+|image=[[Image:H3 E3 Orbital Battle.jpg|350px]]
-|name=Battle of Installation 00
+|conflict=[[Human-Covenant War]], [[Great Schism]]
-|image=[[File:H3 LesserArkConflict.png|400px]]
+|date= [[2552#December|December 11, 2552]]<ref name="Fortitude">[http://halo.xbox.com/en-us/intel/featured/video/herofortitude/bfe5038b-314a-4f17-a6be-f7613e0e3788 '''Halo Waypoint''': ''Hero-Fortitude'']</ref>
-|conflict=*[[Human-Covenant War]]{{Ref/Reuse|theark}}
+|place= [[Installation 00]] (the "Ark")
-*[[Great Schism]]{{Ref/Reuse|theark}}
+|result= Decisive [[United Nations Space Command|UNSC]]/[[Covenant separatists|Covenant separatist]] victory
-|date= [[2552#December|December 11, 2552]]{{Ref/Site|Id=Fortitude|URL=http://halo.xbox.com/en-us/Universe/detail/a/bfe5038b-314a-4f17-a6be-f7613e0e3788|Site=Halo Waypoint|Page=Hero-Fortitude|D=9|M=5|Y=2012|local=Heroes Never Die#Hero-Fortitude}}
+*Death of Prophet of Truth and Gravemind
-|place= [[Installation 00]], [[Intergalactic space]]{{Ref/Reuse|theark}}
+*End of the Human-Covenant War
-|result= '''Decisive [[United Nations Space Command|UNSC]]/[[Fleet of Retribution|Sangheili]] victory'''
+*Overall collapse of the Covenant Empire.
-*End of the [[Human-Covenant War]]{{Ref/Reuse|cov}}
+*Flood forces completely wiped out
-*Death of the [[Prophet of Truth]]{{Ref/Reuse|cov}}
+*Destruction of [[Installation 04B]]<ref name="halo">'''Halo 3''', campaign level ''[[Halo (Halo 3 level)|Halo]]''</ref> and [[Installation 00]]<ref name="Array">[http://halo.xbox.com/en-us/intel/featured/video/the-halo-array/7ec5ea56-3d8c-4644-a760-5baa8f35166c '''Halo Waypoint:''' ''The Halo Array'']</ref>
-*Overall collapse of the [[Covenant]]{{Ref/Reuse|cov}}
+|side1=[[United Nations Space Command|UNSC]]/[[Covenant separatists]]
-*Truth prevented from firing the [[Halo Array]]{{Ref/Reuse|cov}}
+|side2=[[Covenant Empire]]
-*Flood-infested ''High Charity'' and Gravemind physically destroyed{{Ref/Reuse|cortana}}
+|side3=[[The Flood]]
-*Proceeded with the [[Raid on Installation 08]], leading to the destruction of [[Installation 08]], severe damage to the Ark, and containment of the [[Flood]]{{Ref/Reuse|halo}}
+|side4=[[Sentinel]]s
-|side1=*{{Icon|UNSC HCW}} [[United Nations Space Command|UNSC]]
+|commanders1=*[[Commander|CDR]] [[Miranda Keyes]]†
-**{{Icon|Navy}} [[UNSC Navy]]
+*[[Sergeant Major|SgtMaj]] [[Avery Junior Johnson|Avery Johnson]]†
+*[[Master Chief Petty Officer|MCPO]] [[John-117]]([[Missing in action|MIA]])
+*[[Arbiter]] [[Thel 'Vadam]]
+*[[Shipmaster]] [[Rtas 'Vadum]]
+*[[Cortana]] (MIA)
+|commanders2=*[[Prophet of Truth|High Prophet of Truth]]†
+|commanders3=*[[Gravemind]]†
+|commanders4=*[[343 Guilty Spark]]†
+|forces1=*[[Fleet of Retribution]]/[[UNSC Home Fleet|Home Fleet]]
+**''[[Shadow of Intent]]''
+**9 [[CCS-class battlecruiser|CCS-class Battlecruisers]]
+***''[[Pious Inquisitor]]''
+**{{UNSCShip|Forward Unto Dawn}}
+**{{UNSCShip|Aegis Fate}}
+** [[GA-TL1 Longsword|Longsword]] fighters
+** [[D77-TC Pelican|Pelican]] Dropships
+** [[Type-52 Troop Carrier|Phantom]] Dropships
+*Ground forces
 **[[UNSC Marine Corps]]
-**[[UNSC Air Force]]
+***[[M/LAT-16]]
-*{{Icon|Covenant FB}} [[Covenant separatists]]
+***[[S/VRC-8]]
-**[[Fleet of Retribution]]
+***[[S4/BLCE/1/7]]
-*{{Icon|Forerunner}} [[Sentinel|Forerunner constructs]]
+***[[S4/BRT/1/7]]
-|side2=*{{Icon|Covenant FB}} [[Covenant]]†
+****[[Alpha Company, S4/BRT/1/7|Alpha Company]]
-|side3=*[[Flood]]
+****[[Charlie Company, S4/BRT/1/7|Charlie Company]]
-|commanders1=
+***[[Orbital Drop Shock Trooper]]s
-*[[Commander|CDR]] [[Miranda Keyes]]†{{Ref/Reuse|theark}}
+****[[11th Marine Force Reconnaissance/ODST|11th MFR/ODST]]
-*[[Fleetmaster]] [[Rtas 'Vadum]]{{Ref/Reuse|theark}}
+**[[Sangheili]]
-*[[Arbiter]] [[Thel 'Vadam]]{{Ref/Reuse|theark}}
+|forces2=*[[Truth's fleet]]
-*[[Sergeant Major|SGTMAJ]] [[Avery Johnson]]†{{Ref/Reuse|theark}}
+**3 [[Covenant assault carrier|Assault carrier]]s<ref name="theark"/>
-*[[Master Chief Petty Officer|MCPO]] [[John-117]]{{Ref/Reuse|theark}}
+**27 [[CCS-class battlecruiser]]s<ref name="theark"/>
-*[[Cortana]]{{Ref/Reuse|cortana}}
+**Many [[Type-31 Exoatmospheric Multi-role Fighter|Seraph]] fighters
-*[[000 Tragic Solitude]]
+**Many [[Type-52 Troop Carrier|Phantoms]]
-*[[343 Guilty Spark]]{{Ref/Reuse|theark}}
+**[[Forerunner Dreadnought]]
-|commanders2=
+*Ground forces
-*[[Hierarchs|High]] [[Prophet of Truth]]†
-*[[Jiralhanae Chieftain|Chieftain]] [[Cethegus]]†{{Ref/Reuse|theark}}
-*[[Shipmaster]] [[Hekabe]]{{Ref/Reuse|envoy}}
-|commanders3=[[Gravemind]]†
-|forces1=[[Fleet of Retribution]]/[[Seventh Fleet]]
-*At least 11 ships{{Ref/NoteReuse|fleetnumber}}
-**1 [[Sangheili]] [[battle group]]{{Ref/Note|Id=composition|See [[Fleet of Retribution#Notes|here]].}}
-***1+ {{Class|CAS|assault carrier}}{{Ref/Reuse|theark}}
-***9+ {{Pattern|Ket|battlecruiser}}s{{Ref/Reuse|theark}}
-**[[Battle Group Victory]]
-***1+ {{Class|Charon|light frigate}}{{Ref/Reuse|theark}}{{Ref/Note|Id=AegisFate|Text=The ''Charon''-class light cruiser {{UNSCShip|Aegis Fate}} can be seen in the skybox of the ''[[Halo 3]]'' map [[Sandtrap]], which is confirmed to be set on Installation 00 ([[Bungie]]'s [https://halo.bungie.net/News/content.aspx?type=topnews&link=Sandtrap_Postmortem Sandtrap postmortem] states that the ''[[Sandtrap]]'' takes place on "Waypoint," which was the in-development name for Installation 00). However, it is unknown if the map is set during the Battle of Installation 00 or at some later date following the UNSC's [[Operation: FAR STORM|return]] to the installation in [[2555]]. As such, it cannot be stated with reasonable certainty that the ''Aegis Fate'' was present for the battle. Additionally, while it is possible that other ''Charon''-class light frigates from [[Battle Group Victory]] accompanied the {{UNSCShip|Forward Unto Dawn}} to Installation 00, the ''Forward Unto Dawn'' is the only UNSC vessel depicted or described to have joined the Fleet of Retribution  for the journey and ensuing battle.}}
-*Many air vehicles
-**Numerous [[GA-TL1 Longsword]] fighters{{Ref/Reuse|theark}}
-**Numerous [[D77-TC Pelican]]s
-***[[D77H-TCI Pelican]]s{{Ref/Reuse|theark}}
-**Numerous [[AV-14 Hornet]]s{{Ref/Reuse|theark}}
-**Many [[Seraph|T-31 Seraph]] fighters
-***{{Pattern|Kai|Seraph}}s{{Ref/Reuse|theark}}
-**Numerous [[Ru'swum-pattern Phantom#Retribution Phantom|''Ru'swum''-pattern Phantoms]]{{Ref/Reuse|cov}}
-**Numerous {{Pattern|Keljiric|Tarasque}}s
-*Many ground forces
-**1 [[SPARTAN-II program|SPARTAN-II supersoldier]]{{Ref/Reuse|theark}}
-**Numerous [[UNSC Marine Corps|marines]]{{Ref/Reuse|theark}}
-**Numerous [[Orbital Drop Shock Troopers|ODSTs]]{{Ref/Reuse|theark}}
-**Numerous [[Sangheili]]{{Ref/Reuse|cov}}
-*Ground vehicles
-**Several [[M12 Warthog]]s
-***[[M12 Chaingun Warthog]]s{{Ref/Reuse|theark}}
-***[[M12G1 Gauss Warthog]]s{{Ref/Reuse|cov}}
-**[[M274 Mongoose]]s{{Ref/Reuse|theark}}
-**[[M808 Scorpion]]s
-***[[M808C Scorpion]]s{{Ref/Reuse|theark}}
-*Numerous [[Sentinels]]
-**Numerous [[Aggressor Sentinel]]s{{Ref/Reuse|theark}}
-**Numerous [[Constructor]]s{{Ref/Reuse|theark}}
-**[[Forerunner automated turret|Automated turrets]]{{Ref/Reuse|theark}}
-*[[Mendicant Bias]]
-|forces2=[[Truth's fleet]]
-*At least 30 [[Covenant starship|ships]]{{Ref/Note|Id=fleetnumber|Text=See [[Truth's fleet#Notes|Truth's fleet's Notes section]] regarding the size of Truth's fleet and the joint UNSC-Sangheili combined fleet.}}
-**1 [[Forerunner]] [[keyship]]{{Ref/Note|Although present during the Battle of Installation 00, it did not participate in the [[space warfare|space battle]] over [[Installation 00]] as it landed in "[[Mahsko]]," a region of the Ark.}}
-**2+ {{Class|CAS|assault carrier}}s{{Ref/Reuse|theark}}
-**1+ {{Pattern|Varric|heavy cruiser}}{{Ref/Generic|Id=loot5|Heading=[[Halo Legendary Crate]]|Subheading=[[Halo Legendary Crate/Data Drops|Data Drop #5]]|Detail=[[:File:LC 05 Doc1.jpg|Apollo Leader To CDR S. Palmer]]}}{{Ref/Novel|Id=envoy|Novel=Halo: Envoy}}
-**24+ [[Covenant cruiser|Crusiers]]{{Ref/NoteReuse|fleetnumber}}
-***Several {{Pattern|Ket|battlecruiser}}s{{Ref/Reuse|theark}}
-**1+ [[Covenant frigate|frigate]]{{Ref/Reuse|loot5}}
-**1+ [[freighter]]{{Ref/Map|HW2|Ashes}}{{Ref/Game|HW2|Phoenix Logs|Detail=Ashes}}
-*Many air vehicles
-**Many [[Seraph|T-31 Seraph]] fighters
-***{{Pattern|Kai|Seraph}}s{{Ref/Reuse|theark}}
-**Many [[Type-26 Banshee|T-26 Banshees]]
-***{{Pattern|Irdnekt|Banshee}}s{{Ref/Reuse|theark}}
-**Many {{Pattern|Ru'swum|Phantom}}s{{Ref/Reuse|theark}}
-*Many ground vehicles
-**3+ [[Deutoros-pattern Scarab|T-47B Scarabs]]{{Ref/Reuse|theark}}{{Ref/Reuse|cov}}
-**[[Barukaza Workshop Chopper|T-25 Choppers]]{{Ref/Reuse|theark}}
-**[[Zurdo-pattern Wraith|T-26 Wraiths]]{{Ref/Reuse|theark}}
-***[[Ogab'd-pattern anti-aircraft Wraith|T-52 AA Wraiths]]{{Ref/Reuse|theark}}
-**[[Karo'etba-pattern Ghost|T-32 Ghosts]]{{Ref/Reuse|theark}}
-**[[Qavardu Workshop Prowler|T-52 Prowlers]]{{Ref/Reuse|theark}}
-*Numerous ground forces{{Ref/Reuse|theark}}
 **[[Jiralhanae]]
-**[[Kig-Yar]]
+**[[Kig-yar]]
 **[[Unggoy]]
 **[[Yanme'e]]
 **[[Mgalekgolo]]
-|forces3=*[[High Charity]]†{{Ref/Reuse|cov}}
+|forces3=*[[High Charity]]
-*Multiple [[Flood dispersal pod|dispersal pods]]{{Ref/Reuse|cov}}
+*Numerous [[The Flood|Flood]] forms
-*Multiple [[Flood combat form|combat forms]]{{Ref/Reuse|cov}}
+|forces4=*Numerous Sentinels
-*Multiple [[Flood carrier form|carrier forms]]{{Ref/Reuse|cov}}
+|casual1=
-*Multiple [[pod infector]]s{{Ref/Reuse|cov}}
+*Moderate amount of Sangheili and Human ships
-*Multiple [[Flood pure form|pure forms]]{{Ref/Reuse|cov}}
+**''Forward Unto Dawn''
-|casual1= Moderate
+*Numerous infantry losses.
-*[[Miranda Keyes]]{{Ref/Reuse|cov}}
+|casual2=*Most, if not all ships
-*Unknown amount of Sangheili and human ships
+*Most ground forces
-*Numerous infantry losses
+|casual3=*All
-*Many Sentinels
+|casual4=*Nearly all Sentinels
-|casual2=Near total
-*[[Prophet of Truth]]{{Ref/Reuse|cov}}
-*Most ships, if not all{{Ref/Reuse|theark}} {{c|save for ''[[Anodyne Spirit]]'' and ''[[Gathering of Praise]]''}}
-*Most ground forces{{Ref/Reuse|cov}}
-|casual3=Near total
-*''[[High Charity]]''{{Ref/Reuse|cortana}}
-*[[Gravemind]]{{Ref/Reuse|halo}}
 }}
-{{Quote|Our fight is through the [[Portal at Voi|Portal]], with the [[Jiralhanae|Brutes]] and the bastard [[Prophet of Truth|Truth]]!|[[Shipmaster]] [[Rtas 'Vadum]]{{Ref/Level|Id=floodgate|H3|Floodgate}}}}
+{{Quote|Our fight is through the Portal, with the Brutes and the bastard Truth!|[[Shipmaster]] [[Rtas 'Vadum]]<ref>'''Halo 3''', campaign level ''[[Floodgate]]''</ref>}}
-The '''Battle of Installation 00''', also known as the '''Ark Conflict''',{{Ref/Novel|Halo: Warfleet|Page=48}} and designated by [[United Nations Space Command]] forces as '''Operation: BLIND FAITH''',{{Ref/Novel|Id=Blind Faith|Enc09|Page=57}}{{Ref/Novel|Enc11|Page=29}} was a large [[battle]] between the UNSC-[[Fleet of Retribution]] alliance, the [[Covenant]], the [[Flood]], and [[Forerunner]] [[Sentinel]]s on [[2552#December|December 11, 2552]].{{Ref/Reuse|Fortitude}}{{Ref/Level|Id=theark|H3|[[The Ark (level)|The Ark]]}}{{Ref/Level|Id=cov|H3|[[The Covenant (level)|The Covenant]]}}{{Ref/Reuse|halo}} It was the final overarching battle of the [[Human-Covenant War]] and was the last stand of the Covenant,{{Ref/Reuse|halo}}{{Ref/Level|Id=epi|H3|Epilogue (Halo 3)|Epilogue}} making it one of the few major engagements in the entire war in which the Covenant were on the defensive.
-After the [[Battle of the Citadel|collapse]] of the Covenant and the Battle of Installation 00, the [[Great Schism]] would continue as the [[Sangheili-Jiralhanae war]] and still ongoing as of [[2559]], after the [[Created]] [[Created conflict|uprising]] in [[2558#October|late 2558]].{{Ref/Novel|Evo|Section=The Return}} In early 2559, the Ark would become the home of [[Second Ark Conflict|a new conflict]] as the [[Banished]] fought with the forces of the long-lost {{UNSCShip|Spirit of Fire}} for control over the installation.{{Ref/Game|HW2}}
+The '''Battle of Installation 00''' was a large battle between the [[United Nations Space Command|UNSC]]-[[Covenant separatists|Covenant separatist]] alliance, [[Covenant Empire|the Covenant]], [[the Flood]], and [[Forerunner]] [[Sentinel]]s on [[2552#December|December 11, 2552]].<ref name="Fortitude"/><ref name="theark">'''Halo 3''', campaign level, ''[[The Ark (level)|The Ark]]''</ref><ref name="cov">'''Halo 3''', campaign level, ''[[The Covenant (level)|The Covenant]]''</ref><ref name="halo"/> It was the final battle of the [[Human-Covenant War]].<ref name="epi">'''Halo 3''', ''Epilogue''</ref> This battle and the last stand of the Covenant marked one of the few major engagements in the entire war in which the Covenant were on the defensive.
 ==Background==
-===Battle of Installation 04 and 05===
+===Battle of Installation 04===
-{{Main|Battle of Installation 04|Battle of Installation 05}}
+{{Main|Battle of Installation 04}}
-During the [[Battle of Installation 04]] in September 2552, the [[United Nations Space Command|UNSC]] [[Artificial intelligence|AI]] [[Cortana]] intercepted the [[Installation]]'s [[Activation index|Index]] as it was being inserted by [[John-117]] into [[the Core]] in the [[Control Room (Installation 04)|control room]]. Having prevented the activation of the ring, she kept the index even after she had been removed from the Installation's control room. She had also spent over twelve hours inside the control room's computer, gaining an incredible amount of information about the [[Halo Array|Halo]] installations,{{Ref/Level|CE|Assault on the Control Room}}{{Ref/Level|CE|Two Betrayals}} making her possibly the most knowledgeable regarding the operation of the Halo rings, the Forerunners, and the Ark - perhaps even more so than [[343 Guilty Spark]], who admitted he was quite ignorant of the [[Forerunner]] structures beyond Installation 04.{{Ref/Reuse|theark}}
+During the [[Battle of Installation 04]], [[Cortana]] intercepted the [[Installation]]'s [[Activation Index|Index]] as it was being inserted by [[John-117|Spartan-117]]. She continued to hold on to it after she had been removed from the Installation's [[Control Room]]. She also had spent over twelve hours inside the Control Room's computer, gaining an incredible amount of information about the [[Halo Array|Halo]] installations, making her possibly the most knowledgeable regarding the operation of the Halo rings, the Forerunners and the Ark perhaps even more so than [[343 Guilty Spark]] who admitted he was quite ignorant of the [[Forerunner]] structures beyond Installation 04.
-In November 2552, another battle on the next discovered Halo ring, the [[Battle of Installation 05]], included many events that would become major factors in the Battle of Installation 00. Cortana remained aboard the Covenant holy city, ''[[High Charity]]'', as the Flood and its central consciousness, the [[Gravemind]], took control of it.{{Ref/Level|H2|[[High Charity (level)|High Charity]]}} From there, the Gravemind interrogated her, and she willingly answered its questions.{{Ref/Novel|Evo|Section=[[Human Weakness]]}} Meanwhile, the Covenant civil war, termed the [[Great Schism]], begun in ''High Charity'' and the space around Installation 05.{{Ref/Level|H2|[[Gravemind (level)|Gravemind]]}} The recently-appointed Arbiter [[Thel 'Vadam]] and his Sangheili allies, in an effort to prevent [[Chieftain of the Jiralhanae]] [[Tartarus]] from activating the ring, formed an alliance with humans on the surface of Installation 05. With the help of Thel 'Vadam, [[Commander]] [[Miranda Keyes]] aborted the activation of Installation 05, but the installation's failsafe protocol had set all of the Halo rings to standby, where they could be activated from the central location of the Installation 00.{{Ref/Level|Id=TGJ|H2|[[The Great Journey (level)|The Great Journey]]}}
+===Battle of Installation 05===
+{{Main|Battle of Installation 05}}
+The [[Battle of Installation 05]] included many events that would become major factors in the Battle of Installation 00.
-===Battle for Earth===
+The [[United Nations Space Command|UNSC]] [[Artificial intelligence|AI]], [[Cortana]], remained aboard the [[Covenant Empire|Covenant]] holy city, ''[[High Charity]]'' as the Flood and its central consciousness, the [[Gravemind]], took control of it. From there, the Gravemind interrogated her, and she willingly answered its questions.
-{{Main|Battle for Earth}}
-Shortly after escaping the Flood on ''High Charity'', the [[Prophet of Truth|High Prophet of Truth]] had arrived on [[Earth]], along with the rest of many [[High Charity defense fleet|Covenant loyalist ground and naval survivors]] from the Battle of Installation 05,{{Ref/Reuse|TGJ}}{{Ref/Level|Id=Truthfleet|H3|[[Crow's Nest]]|Quote=The Prophet of Truth's ships breached the Lunar perimeter. Smashed what was left of the Home Fleet.|Quotee=Miranda Keyes}} where the excavation of a [[Portal at Voi|Forerunner structure]] under the planet surface was almost completed by the Jiralhanae-led [[Truth's fleet|support and excavation fleet]] sent by Truth [[Battle of Mombasa|earlier]].{{Ref/Film|Id=waypoint|Film=Halo Waypoint|Story=Ten Twenty|StoryLinkText=Ten Twenty}} Eventually Truth's forces uncovered and activated the structure, opening a [[slipspace portal]] that would take them to Installation 00, the Forerunner structure from which Truth can fire all of the Halo installations at once. As he departed through the Portal, the Flood-captured ship ''[[Indulgence of Conviction]]'' arrived on Earth and crashed, though its arrival was followed by a portion of the Sangheili [[Fleet of Retribution]] of at least 16 [[Covenant starship|warships]], led by [[Shipmaster]] [[Rtas 'Vadum]].{{Ref/Level|Halo 3|[[The Storm]]}}{{Ref/Map|Id=heretic|H3|Heretic}} From it, John-117 was able to extract a message from [[Cortana]], alerting them that ''High Charity'' was heading for Earth and cryptically stating that [[Installation 08|the "solution" to the problem of the Flood]] lays beyond the portal.{{Ref/Reuse|floodgate}}
-While [[Terrence Hood|Lord Terrence Hood]] was suspicious of Cortana's warning and objected to going through the portal, Commander Keyes, John-117, and Rtas 'Vadum all indicated their wish to proceed through the Portal. Unwilling to leave Earth defenseless against the incoming Flood threat, Lord Hood remained on Earth. He gave Miranda Keyes command of the {{UNSCShip|Forward Unto Dawn}} for the human commitment to the mission and the fleet of ships chased after the High Prophet of Truth.{{Ref/Reuse|floodgate}}
+The aborted activation of Installation 05 had set all of the Halo rings to standby, where they could be activated from the central location of the [[Installation 00|Ark]].
-==Battle==
+Finally, the [[Covenant Empire|Covenant]] civil war, termed the [[Great Schism]], and the [[human]]-separatist alliance began in the space around Installation 05.
-===Space battle===
-[[File:H3 - Retribution Victory vs Truths Fleet.png|thumb|300px|Truth's Jiralhanae fleet confronts the Sangheili Fleet of Retribution]]
-{{Quote|multi=yes|q1=Brute ships. Staggered line! Shipmaster, they outnumber us, three-to-one!|Sangheili Major|q2=Then it is an even fight... All cruisers, fire at will! Burn their mongrel hides!|Rtas 'Vadum|Rtas' Vadum and a [[Sangheili Major]] upon reaching the Ark.{{Ref/Reuse|theark}}}}
-The Fleet of Retribution exited slipspace in the vicinity of the Ark on [[2552#December|December 11, 2552]], where they found [[Truth's fleet|the Prophet of Truth's fleet]] waiting for them. Despite being outnumbered three-to-one, Rtas 'Vadum declared that they were fairly matched, and the Sangheili ships and the ''Forward Unto Dawn'' promptly engaged Truth's fleet. In the ensuing [[space warfare|space battle]], the Jiralhanae and Sangheili cruisers blended into each other.{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Their cruisers mixed with ours! Watch your fire!|Quotee=Jiralhanae Commander}} 'Vadum and Keyes coordinated their attacks against the Covenant fleet; whereas the Sangheili ships and the ''Dawn'' focused their attacks on the Covenant cruisers,{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Let the Elites handle those cruisers!|Quotee=Miranda Keyes}} the ''Dawn''{{'}}s Longsword fighters engaged the Seraphs.{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Stay away from those cruisers!|Quotee=Rtas 'Vadum}}{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Understood. Engage those Seraphs!|Quotee=Miranda Keyes}} However, the ''Dawn'' was ill-equipped to fight against large opponents like ''CAS''-class assault carriers and ''Ket''-pattern battlecruisers. Thus, at the start of the battle, the ''Dawn'' deployed six [[D77H-TCI Pelican]]s to the surface to search for a landing zone for the ''Dawn'' and gather intelligence on Truth's location.{{Ref/Reuse|theark}}
+===Battle of Earth===
+{{Main|Battle of Earth}}
+The [[Prophet of Truth|High Prophet of Truth]] had arrived on [[Earth]] with the rest of his fleet, to complete the digging of a [[The Portal|Forerunner structure]] under the planet surface. Eventually they uncovered and activated it, opening a [[slipspace portal]] that would take them to the [[Installation 00|Ark]], a Forerunner structure from which Truth can fire all of the Halo installations at once. As he departed through the Portal, a [[The Flood|Flood]]-[[Unidentified Flood-captured battlecruiser|captured ship]] arrived on Earth and crashed. From it, John and the Arbiter were able to extract a message from [[Cortana]], alerting them that ''[[High Charity]]'' was heading for Earth and indicating that the solution to the problem of the Flood lay beyond the portal.
-The Forerunner [[Keyship]], ''[[Anodyne Spirit]]'', did not participate in the space battle.{{Ref/Reuse|theark}} Instead, it landed amidst a Forerunner city within a region of the Ark later referred to as [[Mahsko]] by the [[Banished]].{{Ref/Reuse|Id=Sacrifice}} A detachment of Covenant warriors were assigned to protect the vessel as Truth left to activate the [[Halo Array]].{{Ref/Novel|Id=Sacrifice|SoR|Detail= Adjunct - [[Sacrifice]]}}
+While [[Terrence Hood|Lord Hood]] was suspicious of [[Cortana]]'s warning and objected to going through the portal, [[Commander]] [[Miranda Keyes]], Spartan-117 and [[Shipmaster|Ship Master]] [[Rtas 'Vadum]] all indicated their wish to proceed through the Portal. Lord Hood gave Miranda Keyes command of the ''[[UNSC Forward Unto Dawn|Forward Unto Dawn]]'' for the human commitment to the mission and the fleet of ships chased after the High Prophet of Truth.
-Although the space battle went on concurrently with the opening skirmishes on the surface of the Ark, the Sangheili fleet would make short work of the Covenant fleet due to the Jiralhanae being outmatched by the Sangheili in their knowledge of naval warfare.{{Ref/Book|Id=Mythos122|Halo Mythos: A Guide to the Story of Halo|Page=122}} At least two Sangheili ships would survive the battle: the flagship {{Class|CAS|assault carrier}} ''[[Shadow of Intent]]'' and the {{Pattern|Ket|battlecruiser}} ''[[Pious Inquisitor]]''.{{Ref/Reuse|theark}}{{Ref/Novel|Halo: The Thursday War|Chapter=?}} On the Covenant side, the {{Pattern|Varric|heavy cruiser}} ''[[Foebane|Gathering of Praise]]'', led by [[Jiralhanae Chieftain]] [[Hekabe]], abandoned the Covenant forces and landed on the installation surface in search of a device known as the ''[[vertex]]''.{{Ref/Reuse|envoy}}
+==Battle==
+{{Quote|Brute ships. Staggered line! Shipmaster, they outnumber us, three-to-one!|Sangheili Major}}
-{{clear|left}}
+{{Quote|Then it is an even fight. All cruisers, fire at will! Burn their mongrel hides!|Shipmaster Rtas 'Vadum}}
-===Search for the Cartographer===
-{{Main|Battle for the Cartographer (Installation 00)}}
-[[File:Ark Level Scorpion.jpg|thumb|left|300px|UNSC ground forces battling in the desert.]]
-The Pelicans from the ''Forward Unto Dawn'' arrived on the surface of the Ark, where they deployed [[UNSC Marine Corps|Marines]] and UNSC vehicles to search for a landing zone for the ''Dawn''. ''[[Kilo 023]]'' and another Pelican deployed [[Master Chief Petty Officer]] John-117 and a squad of [[Orbital Drop Shock Trooper|ODSTs]] at a cliff edge, near a series of Forerunner structures built into the desert terrain. Nearby, a third Pelican, which carried a [[M12 Chaingun Warthog|Warthog]], two [[M274 Mongoose|Mongooses]], and [[UNSC Marine Corps|Marines]] including [[Chips Dubbo]], found a wide cliff which could serve as a landing zone for the ''Dawn'', but the Pelican was shot down by Covenant anti-air defenses.{{Ref/Reuse|theark}}
-With support from his accompanying ODST squad and his [[SRS99D-S2 AM sniper rifle]], John-117 cleared out two Covenant camps of Jiralhanae, Unggoy, and Kig-Yar. At the second camp, they disrupted the Covenant's efforts to assemble a [[Skar'wa-pattern Mantis|Mantis]]. Emerging on the other side of the Forerunner structures, they linked up with Dubbo and other survivors seeking refuge from the downed Pelican, where a lance of Covenant searched for survivors. Dubbo informed John-117 of the potential landing zone for the ''Dawn''. Upon defeating the Covenant patrol at the Pelican, a pair of [[Qavardu Workshop Prowler|Prowlers]] arrived at the area, but their operators were eliminated by the UNSC. Salvaging both UNSC and Covenant vehicles, John-117 and his team advanced into the Covenant-occupied canyon. At this point, the Covenant have set up an attack force of infantry and {{Pattern|Rizsheda|Shade}}s at a nearby [[Forerunner]] wall, which was defended by [[Aggressor Sentinel]]s. John-117 and his team eliminated the Covenant attackers, and the Sentinels, recognizing the humans as [[Reclaimer]]s, withheld their attacks. [[Sergeant Major]] [[Avery Johnson]], onboard ''Kilo 023'', spotted a structure that was similar to the [[Cartographer]] of [[Installation 04]] on the other side of the wall, and Keyes set the structure as the objective.{{Ref/Reuse|theark}}
-The landing zone was occupied by Ghosts, a [[Zurdo-pattern Wraith|Wraith]], several [[Covenant watchtower]]s, Jiralhanae and Unggoy infantries, and two [[Ogab'd-pattern anti-aircraft Wraith|Anti-Air Wraiths]] that were firing into an aerial battle between [[Type-26 Banshee|Banshees]] and [[AV-14 Hornet|Hornets]]. John-117 and his team, having gathered more Marine survivors, cleared the landing zone, allowing the ''Forward Unto Dawn'' to disengage from the space battle and descend to the surface of the installation, landing safely. From the ''Dawn''{{'}}s hangar, the UNSC was reinforced with three [[M808C Scorpion|Scorpion]] tanks, a [[M12 Chaingun Warthog|Warthog]] and a unit of Marines led by [[Gunnery Sergeant]] [[Marcus Stacker]]. With [[343 Guilty Spark]] having arrived to guide them, the mechanized force then fought their way back to the Forerunner wall, destroying numerous Covenant vehicles and ground troops. The Covenant had retaken the wall, bolstering their defenses with Wraiths, Choppers, and Shade turrets, but they failed to deter the UNSC's progress.{{Ref/Reuse|theark}}
+The High Prophet of Truth, having successfully activated the artifact in [[Voi]], left Earth through a slipspace portal to the Ark, a Forerunner structure that can be used to fire all of the Halo installations at once. Despite Lord Hood's skepticism, Commander Keyes took the ''Forward Unto Dawn'' with a small fleet of separatist [[cruiser]]s led by the [[Covenant assault carrier|assault carrier]] ''[[Shadow of Intent]]'' and proceeded through the Slipspace portal, arriving at the Ark. The Separatists immediately engaged the [[Jiralhanae|Brute]] fleet stationed to protect the [[Hierarchs|Prophet]] while the ''Dawn'' deployed the [[John-117|Master Chief]] and [[Orbital Drop Shock Trooper]]s in six [[D77-TC Pelican|Pelicans]] to locate Truth. Despite being outnumbered three-to-one in space, the Separatist fleet made short work of the Covenant space forces, likely due to the [[Sangheili]]'s remarkable tactical adeptness. The Covenant loyalist fleet had been destroyed and the only loyalists left alive were Truth and his forces on the Ark. Also, presumably Truth landed the [[Forerunner Dreadnought]] on the Ark although it was never seen again and was specifically said not to take part in the battle above the Ark.<ref name="theark"/>
-After entering the wall and emerging from the other side, the UNSC encountered a [[Deutoros-pattern Scarab|Scarab]]. Although the Scarab quickly left the area, the canyon leading from the wall to the Cartographer was defended by a battalion-sized force of Covenant heavy armor, including Choppers, Ghosts, Wraiths, and infantry with [[Pez'tk-pattern fuel rod gun|heavy weapons]], reinforced by a Phantom. Two of the three Warthogs, which emerged from the wall first, were quickly overwhelmed, and their operators were killed. A single [[M12G1 Gauss Warthog]], taking a winding path to the side, was harassed by Ghosts and lost its gunner, though it regrouped with John-117, who had left the group earlier when they travel across the wall. The Spartan commandeered the vehicle and rejoined the Scorpion tanks. John-117 and Stacker then led the Scorpions against the Covenant armor. When the UNSC forces broke through the Covenant defenses, the Scarab returned to the area, with Choppers as its escorts. Stacker ordered Marines from Bravo unit to flank the Scarab to cover John-117's assault on the Scarab. They succeed, with John-117 personally taking down the Scarab. After the Scarab's destruction, the ''[[Shadow of Intent]]'' arrived at the Cartographer, and Rtas 'Vadum announced that his fleet had destroyed Truth's fleet.{{Ref/Reuse|theark}}
+[[File:923831-Full.jpg|thumb|200px|Truth's Jiralhanae fleet confronts the Sangheili Fleet of Retribution]]
-[[File:H3 TanksVsScarab.png|300px|thumb|Scorpion Tanks battle a Scarab in the desert.]]
+===Operation: BLIND FAITH===
+As part of an operation called Operation: BLIND FAITH,<ref>'''Halo Encyclopedia''', ''page 57'', "11th Marine Force Reconnaissance Unit/ODST" within "ODST Units"</ref> five of the Pelicans deployed by the human [[UNSC frigate|frigate]]s had made it to the Ark. The Master Chief and four [[Orbital Drop Shock Trooper|ODSTs]] were deployed, ambushing a group of [[Jiralhanae|Brutes]], [[Unggoy|Grunts]], and [[Kig-yar|Jackals]] listening to a message from Truth. They then proceeded to ambush another group of Covenant loyalists building an Anti-Aircraft Gun. They entered a small cave, where the Chief first accessed the Forerunner [[Terminal]] network. On the other side of the cave they met a pair of [[UNSC Marine Corps|Marine]] survivors from a second shot down Pelican and witnessed a [[GA-TL1 Longsword|Longsword]] fighter crashing. After being informed of a possible landing zone for the ''Forward Unto Dawn'', the humans ambushed the Brutes and Grunts searching the crashed Pelican, then destroyed a pair of [[Type-52 Infantry Support Vehicle|Brute Prowlers]] that attacked. Now with [[M274 Ultra-Light All-Terrain Vehicle|Mongooses]] and Prowlers, they continued past the crashed Longsword, a pair of [[Single Occupant Exoatmospheric Insertion Vehicle|HEVs]] that had landed and had the ODST's which had once occupied them killed once they left their pods, and a crashed [[Type-52 Troop Carrier|Phantom]] to a battle between Covenant and Sentinels outside a Forerunner barrier. [[Avery Junior Johnson|Avery J. Johnson]] informed that he had spotted a structure that was similar to the [[Cartographer]] of Installation 04 on the other side of the wall, and Keyes set it as their objective. The ''Dawn'' would need to land first however. After meeting another group of Marines being attacked, the vehicles led by the Chief then moved to the sighted Landing Zone, which was occupied by a pair of Anti-Air Wraiths. After they cleared the LZ, the ''Dawn'' disengaged from the space battle and dived onto the surface of the installation, landing safely.<ref name="theark"/>
-Encountering resistance from Jiralhanae and Kig-Yar on the way, John-117 climbed a series of ramps towards the entrance to the Cartographer. At the top, he met with [[Thel 'Vadam]], who dismounted from ''Kilo 023'' along with a pair of Marines. While Commander Keyes assembled an air support force to prevent Covenant reinforcements, 343 Guilty Spark unlocked the sealed door at the entrance, allowing John-117 and Thel 'Vadam to advance inside. Their arrival caught most of its Covenant occupants off-guard, and they eventually arrived at an exterior platform hosting the Cartographer terminal. The Chief and 343 Guilty Spark accessed the terminal, learning the installation as the "Ark" and that Truth had already fortified himself at [[Installation 00 Citadel|the core of the Ark]], where he could remotely activate the entire Halo Array. Furthermore, Truth had activated a large barrier around the entire core to ward off the attacking forces.{{Ref/Reuse|theark}}
+[[Image:Ark Level Scorpion.jpg|thumb|left|200px|UNSC ground forces battling in the desert.]]
-After learning of Truth's location, they were attacked by a Phantom, one of the many aircrafts from the Covenant's aerial attack on the Cartographer. Thel 'Vadam drew the Phantom's fire, allowing the Chief to escort Spark clear. 'Vadam then hijacked a Banshee and joined Keyes' air support to repel the Covenant attack. Notified by Dubbo, John-117 was instructed to descend to a platform underneath the Cartographer for extraction. The Spartan fought his way down, defeating a [[Jiralhanae War Chieftain|War Chieftain]], his [[Jiralhanae Bodyguard|Bodyguards]], and a group of [[Cloaking|camouflaged]] [[Jiralhanae Stalker]]s along the way.{{Ref/Reuse|theark}} At the platform underneath the Cartographer terminal, [[Jiralhanae Chieftain]] [[Cethegus]] regrouped with the [[Jiralhanae Jumper|Jumpers]] from his pack. Cethegus and the members of his pack were charged with halting the UNSC-Sangheili progress. Believing he would ascend to the title of Chieftain of the Jiralhanae for killing the Spartan, the ambitious Chieftain challenged John-117 to a duel.{{Ref/Site|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-brute-force|Site=Halo Waypoint|Page=Canon Fodder - Brute Force|D=11|M=10|Y=2021}} Despite being outnumbered, John-117 defeated Cethegus' pack as well as two Kig-Yar marksmen. Meanwhile, the Hornets under Keyes' command had destroyed the Banshee attack force, putting an end to the conflict at the Cartographer.{{Ref/Reuse|theark}}
+From the ''Dawn'''s hangar, the Master Chief, ODSTs, and Marines were reinforced with two [[M808B Main Battle Tank|Scorpion]] tanks and a [[M12 Force Application Vehicle|Warthog]]. The human force then fought their way through a large reinforcements force back to the Forerunner wall. The Chief went through the upper, smaller doorway while the armor and vehicles (reinforced with one more Warthog and a [[M12G1 Light Anti-Armor Vehicle|Gauss Warthog]]) went through the larger, lower doorway. After activating a light bridge the [[Spartan]] went through the wall, only to see a [[Type-47 Ultra Heavy Assault Platform|Scarab]] and a Covenant armored force destroy the Warthogs. He then fought his way to the lower doorway, which then finally opened fully, letting the tanks through. [[Sergeant]] [[Stacker]] and the Chief led the [[M808B Main Battle Tank|Scorpions]] and a [[M12 Force Application Vehicle|Warthog]] through two Covenant defense lines of [[Type-25 Rapid Assault Vehicle|Choppers]], [[Type-32 Rapid Assault Vehicle|Ghosts]], [[Type-26 Assault Gun Carriage|Wraiths]], and infantry with heavy weapons, reinforced by a Phantom. When the Scarab returned, the humans then proceeded to destroy it, plus the Choppers and infantry reinforcing it. By now the Elites had defeated the entirety of Truth's remaining fleet. The ''[[Shadow of Intent]]'', landed near the Cartographer.<ref name="theark"/> Rtas 'Vadum likely ordered all his remaining ships except for the ''Shadow of Intent'' to go back to [[Earth]] and wait for his return.
-''Kilo 023'' arrived to pick up John-117, but a massive swarm of Sentinels approached the Pelicans. Initially, the UNSC prepared to attack, but they stopped when 343 Guilty Spark asked them not to attack the Sentinels, stating that the Sentinels had a "priority task" of unknown nature. Instead of attacking, the Aggressors flew off into the distance, and the UNSC and Sangheili followed suit, making their way to the Installation 00 Citadel to stop the Prophet of Truth.{{Ref/Reuse|theark}}
+[[File:Banshee cov.jpg|thumb|200px|Covenant air forces engaging UNSC/Sangheili forces.]]
-{{clear|left}}
+[[343 Guilty Spark]], now working with the UNSC-separatist alliance, led [[John-117|Spartan-117]] and the Arbiter [[Thel 'Vadam]], plus a pair of Marines, to the Ark's Cartographer. Fighting their way through several incompetent and unprepared forces that were asleep, they get back outside where they pinpointed the Prophet's location. By then Truth had already holed himself in a secure facility in the core of the Ark and had activated a large barrier around the entire core to ward off the attacking forces. After discovering Truth's location, the UNSC-separatist troops were attacked by a large Covenant air force. Johnson led the air battle against them, and 'Vadam stole a [[Type-26 Ground Support Aircraft|Banshee]] to help him. The Chief, with the pair of Marines, fought his way past a group of [[Jiralhanae Stalker|Stalker Brutes]]. He then dueled with a [[Jiralhanae Chieftain|Brute Chieftain]] and defeated squad of [[Jump Pack Jiralhanae|Jump Pack Brutes]] before being picked up by Pelican [[Kilo 023]] after the Covenant air force was dealt with. The humans and Elites set forth to attack Truth to stop him from activating the rings.<ref name="theark"/>
 ===Battle of the Citadel===
 {{main|Battle of the Citadel}}
-[[File:Trident11.jpg|thumb|left|300px|UNSC and Sangheili forces spearhead their final assault on the High Prophet of Truth.]]
+[[Image:Trident11.jpg|thumb|right|250px|[[Human]] and Elite forces begin their assault on Truth.]]
-On the same day, December 11, 2552, the UNSC-Sangheili alliance arrived at vicinity of the core of Installation 00. AV-14 Hornets were sent in to contest for airspace around the barrier. An assault team, composed of five Pelican dropships and a pair of Sangheili Phantoms, began their attack on a trio of [[Barrier tower|towers]] that, once disabled, would deactivate the barrier protecting the Citadel in which the Prophet of Truth was located. Two Pelicans, including ''Kilo 023'' which carried John-117 and an ODST squad led by Gunnery Sergeant Stacker, would attack the Tower One. The Phantoms, which carried Thel 'Vadam and his Sangheili (including [[N'tho 'Sraom]] and [[Usze 'Taham]]),{{Ref/Novel|HitD|Chapter=?}} would assault the middle tower. The other Pelicans, ferrying Sergeant Johnson and his squad, would disable the final tower. ''Kilo 023'' deployed John-117, along with Stacker and his ODSTs, at a distance from the first tower after an Anti-Aircraft Wraith shot down the second Pelican carrying Marines and a Warthog. After John-117 defeated the War Chieftain, his entourage, and the Anti-Air Wraith, Commander Keyes' Pelican deployed a new Warthog and a Mongoose at the beachhead for the team. Meanwhile, the ''Shadow of Intent'' began a diversionary bombardment against the barrier, firing [[plasma torpedo]]es at the barrier shield.{{Ref/Reuse|cov}}
+The UNSC ground forces, carried in five Pelicans, along with Sangheili reinforcements in a pair of green Phantoms, assaulted three emitter pylons that powered a small section of the barrier. The Master Chief and a small squad of three of [[Orbital Drop Shock Trooper|ODSTs]] were deployed a distance from the first tower by a Pelican after hostile fire shot down a second Pelican carrying Marines and a Warthog. The crashing Pelican also took out the ODSTs' Warthog. [[Thel 'Vadam]] and Elites assaulted the second tower. Sergeant Johnson took four Marines and attacked the final tower. Clearing the Covenant loyalist heavy weapons on the beach, a new Warthog and a Mongoose were deployed and taken through heavy resistance to the tower. Clearing it, the Chief learned that the separatists had taken down the second tower, but Johnson had been ambushed by enemy reinforcements. The Chief returned to the beach, commandeered a [[AV-14 Hornet|Hornet]] and helped destroy Covenant Banshees and a Phantom, securing air control for the UNSC-Sangheili forces outside the barrier. Destroying the Brute defenders outside the third tower with Hornets and Pelicans, Master Chief, Thel 'Vadam, and a team of five Elites discovered the corpses of the Marine team, except for Johnson's. When the defending forces were eliminated and the barrier deactivated, the ''Shadow of Intent'' prepared to bombard the Citadel, but was prevented from doing so by the arrival of the [[The Flood|Flood]]-infested ''[[High Charity]]'', which launched debris that crippled the Sangheili carrier and spread Flood across the Ark. Keyes insisted that this would only pressure Truth into activating the rings, and ordered the remaining forces to attack him directly.
-While John-117 and his team traveled to the first tower, 'Vadam and Johnson, along with their teams, touched down at the second and third towers, respectively. Although John-117 and 'Vadam succeed in disabling two of the three towers, Johnson was ambushed by enemy reinforcements, and lost contact with the UNSC soon after. The Jiralhanae captured Johnson, and took him to the Citadel. The UNSC-Sangheili forces launched a second assault on the third tower, with John-117 escorting the dropships in an AV-14 Hornet. They first destroyed Covenant Banshees and a Phantom, securing air control outside the barrier. The third tower was heavily defended by a pair of AA Wraiths, Shades, another standard Wraith, and a huge group of Jiralhanae led by War Chieftain. Destroying the Brute defenders outside the third tower, John-117, Thel 'Vadam, and a team of five Sangheili proceeded inside, where they discovered the corpses of Johnson's team, except for Johnson. After the defending forces of Mgalekgolo, Yanme'e and Jiralhanae were eliminated, John-117 disabled the barrier tower, finally deactivating the barrier. The ''Shadow of Intent'' advanced towards the Citadel, but 'Vadum's attack was interrupted by the arrival of the Flood-infested ''High Charity'', which arrived via slipspace. ''High Charity'' launched debris that crippled the carrier and its weapons systems, forcing the ''Shadow of Intent'' to retreat. It also launched [[Flood dispersal pod]]s and began spreading Flood across the Ark. Keyes insisted that the Flood's arrival would only pressure Truth into activating the rings, and ordered the remaining ground forces to attack the Citadel.{{Ref/Reuse|cov}}
+Fighting through a group of Flood, the Elites and the Chief met up with Sergeant Stacker's Marines, supported by a Scorpion, a Gauss Warthog, and a Mongoose. The humans and Elites fought through the cliffs to the area outside the [[Citadel]], the structure which could remotely activate all of the [[Halo Array]]. The Covenant attempted to reinforce their troops by a large amount of Phantom transports gathered from around the installation, but the UNSC air forces countered this by attacking the Phantoms and their Banshee escorts with Hornets and Pelican Gunships. The ground forces managed to destroy the remaining Covenant armor on the mountainside. Given another Gauss Warthog and air support from a flight of Hornets and a Pelican, the Marines destroyed Banshees, Ghosts, a Prowler, plus a pair of Scarabs dropped in front of the Citadel by Brutes. After the destruction of the Scarabs, the Covenant had lost their grip on the Citadel area. Without any heavy support, Spartan-117 and 'Vadam personally attacked the facility where Truth was to activate the Halo installations.<ref name="cov"/>
-[[File:H3 CitadelBattle.jpg|300px|thumb|The massive final battle of the Human-Covenant War at the front of the Citadel.]]
+[[File:Scarab explodes.jpg|thumb|right|250px|The Covenant ground forces are defeated.]]
-During this time, the [[Jiralhanae Chieftain]] [[Hekabe]] decided to use the distraction from the Flood arrival to locate the ''[[vertex]]'' hidden on the Ark. The control device for the [[Sharquoi]], the ''vertex'' would allow Hekabe to control the creatures. Though the Prophets had some Sharquoi themselves, they had lacked the ''vertex'' and so could not control them and never unleashed them. Hekabe intended to use the ''vertex'' and the Sharquoi to gain power for himself and so fled the Ark with his loyalists before the battle ended despite fighting on the side of the Covenant.{{Ref/Reuse|envoy}}
+[[Sergeant Major]] Johnson, who had disappeared during the assault, was in fact captured by Truth's forces and was being tortured into pressing the final switch to activate the other Halos. With Spartan-117 and the Arbiter too far away to stop High Prophet of Truth, Commander Keyes grabbed a Pelican dropship and crashed into the facility to rescue Johnson, but was killed soon after by Truth himself. However, her actions delayed Truth long enough for Spartan-117 and the Arbiter to stop him. The [[Gravemind]] dispatched Flood forces to assist Spartan-117 and the Arbiter in preventing the Halos' activation and the Arbiter personally killed Truth. However, the Gravemind betrayed them soon after and while Johnson managed to escape with Commander Keyes' body in the Pelican, Spartan-117 and the Arbiter had to fight their way outside with the assistance of some Sentinels.
-Fighting through the Flood to exit the third tower, John-117 and the Sangheili regrouped with Gunnery Sergeant Stacker's Marines, now supported by a Scorpion, a Gauss Warthog, and a Mongoose. The humans and Sangheili fought through the cliffs to the area outside the Citadel, where the Covenant had set up lookout towers, Shade turrets, and ground vehicles. The Covenant attempted to reinforce their troops by a large amount of Banshees and Phantoms, but the UNSC air forces counterattacked with Hornets and Pelican gunships. The ground forces led by John-117 punched through the remaining Covenant armor on the mountainside. With the UNSC's arrival imminent, the Covenant deployed two final Scarabs, each commanded by a Jiralhanae War Chieftain, at the entrance to the Citadel, further supported by Prowlers, Ghosts, and Banshees. However, their efforts were in vain, and, with the Scarabs destroyed by John-117, any remaining Covenant stragglers were soon moped up by the UNSC.{{Ref/Reuse|cov}}
+[[File:TruthDeath-large.jpg|thumb|right|Arbiter killing the Prophet of Truth.]]
+Guilty Spark had managed to facilitate the making of a new Halo through the Ark, explaining that a tactical pulse from it would eliminate the Flood infestation. However, this new Halo lacked an Activation Index. The only way they could get another Index was to rescue Cortana from ''High Charity'' since she still possessed the Index from Installation 04.<ref name="cov"/>
-While the Flood began climbing up the Citadel's far wall, John-117 and Thel 'Vadam led a small attack force, including N'tho 'Sraom, Usze 'Taham, as well as a few Marines and Sangheili, into the Citadel.{{Ref/Novel|Id=HitD252|HitD|Page=252}} Inside, the Prophet of Truth was giving a speech attempting to reassure his remaining followers, declaring that he was about to activate the Halo Array by forcing Johnson into interacting the control panel. Realizing that they had very little time left, John-117 and Thel 'Vadam hastily made their way to the elevator that would carry them to Truth's level, but the elevator's immense height meant that they would not be able to intervene in time.{{Ref/Reuse|cov}}
+Johnson picked up the Arbiter and the Chief while Guilty Spark went off to the new Installation. The party then headed to the Shadow of Intent, where Johnson, 'Vadam, and Ship Master 'Vadum rounded up the UNSC and Sangheili forces. Meanwhile, Master Chief [[Raid on High Charity|infiltrated]] ''High Charity'', successfully recovering Cortana and the Index and sabotaging the city's reactors. He escaped with the help of 'Vadam and fled onboard a crashed Pelican as the station exploded, ostensibly destroying the Gravemind.<ref>'''Halo 3''', campaign level ''[[Cortana (level)|Cortana]]''</ref>
-Johnson attempted to goad the Chieftain that was holding him into killing him, but Truth, realizing this, stopped the Chieftain. With John-117 and the Arbiter too far away to stop Truth, Commander Keyes took her Pelican dropship and crashed it directly into the facility in an attempt to rescue Johnson, but she was killed by Truth himself when she hesitated to kill Johnson and herself to deny Truth a means to activate the rings. Johnson, struck by grief and shock, was easily made to activate the Array. However, Keyes' actions delayed Truth long enough for John-117 and the Arbiter to stop him. The Gravemind dispatched a swarm of [[Pod infector]]s and [[Flood combat form]]s, led by two [[Flood tank form]]s, to assist the UNSC-Sangheili force in preventing the Halos' activation. They were met by the Jiralhanae Chieftain and his Unggoy, Kig-Yar and Jiralhanae.{{Ref/Reuse|cov}}
+===Finishing the fight===
+{{Main|Raid of Installation 04B}}
+With the Index secure, Thel 'Vadam ordered Rtas 'Vadum (who has safely evacuated humans and Sangheili back onboard the ''[[Shadow of Intent]]'') to escape back through the slipspace portal to Earth while he, Spartan-117, and Sergeant Major Johnson moved in on the Control Room of the incomplete Halo. The ''Dawn'' was left behind for them to use to escape. The Gravemind, meanwhile, had begun to rebuild itself on the new ring, and sent [[Flood dispersal pod]]s to kill the three interlopers. The Chief, 'Vadum, and Johnson, with the assistance of local [[Sentinel]]s and 343 Guilty Spark, fought through the Flood and entered the Control Room. Spark explained that the new Halo would be ready to fire within days, to which the group, particularly Johnson, protested. When Guilty Spark informed the three that activating Halo now would destroy both the Ark and the installation, Johnson told him to "deal with it" and prepared to activate the ring.<ref name="halo"/>
-[[File:TruthDeath-large.jpg|thumb|left|300px|Arbiter killing the High Prophet of Truth.]]
+{{Quote|Send me out, with a bang.|[[Avery Junior Johnson|Johnson]]'s last words}}
-The defending Covenant forces quickly collapsed under the combined assault from the humans, Sangheili, and the Flood. With all Covenant in the Citadel eliminated, John-117 and 'Vadam reached the final room where they found Johnson cradling the dead body of Commander Miranda Keyes. 'Vadam confronted the Prophet of Truth, who was already partially infected by the Flood. 'Vadam allowed the Prophet to live long enough to see John-117 deactivate the rings, and 'Vadam personally killed Truth. With the Halo threat eliminated, the Gravemind betrayed the humans and the Sangheili, sending a large group of Flood combat forms and carrier forms after John-117 and Thel 'Vadam. The two attempted to escape on Keyes' Pelican, now piloted by Johnson, but they were knocked off by one of Gravemind's tentacles. With Johnson's Pelican spiraling out of the control, Johnson instructed the two to return to the elevator.{{Ref/Reuse|cov}}
-With the assistance of Aggressor Sentinels, the pair fought their way back to the elevator, which had been disabled. Without another choice, the two dropped down a small shaft in the room. At the bottom, John-117 followed flickers of Cortana to a control panel, and, upon its activation, they found [[Installation 08]] departing from the Ark's [[Foundry (location)|Foundry]]. Realizing this was Cortana's "solution" for the Flood, John-117 decided he needed to activate the ring at the Ark's isolated location, where the pulse would not destroy the sentient life in the [[Milky Way]] galaxy. 343 Guilty Spark concurred, that a tactical pulse would eliminate the Flood infestation on the Ark, and made his way to the ring to oversee the final preparations. However, this new Halo lacked an activation index. The only way they could get another index was to rescue Cortana from ''High Charity'', since she still possessed the index from the original Installation 04.{{Ref/Reuse|cov}}
+Unwilling to let "his" ring be destroyed again, 343 Guilty Spark went rampant, mortally wounded Johnson, took down Spartan-117's shields and blew the Arbiter out of the room. However, with the help of a dying Sergeant Johnson and his [[M6 Grindell/Galilean Nonlinear Rifle|Spartan Laser]], Spartan-117 managed to destroy Guilty Spark and start the firing sequence of the new Halo. He and the Arbiter then took Johnson's Warthog and rushed towards the ''Dawn'' as the incomplete Halo powered up and started breaking apart. The two drove their way through hordes of battling Flood and [[Sentinel]] drones, with the world literally falling to pieces around them. The two heroes made it onto the ''Dawn'', where the Arbiter was almost crushed by a Scorpion Tank due to the sudden acceleration of the ship. Agility and a pair of crates saved him. Spartan-117 then inserted Cortana into a holotank and she activated the ''Dawn's ''engines. The Arbiter made his way to the bridge of the ''Dawn'' and took her into Slipspace just as the new Halo fired, with Master Chief almost being crushed by the same tank which descended through the cargo hold and into space.<ref name="halo"/> However, the Slipspace portal collapsed as the ''Dawn'' entered it and while the forward half with the Arbiter made it to Earth, the rear half fell out of Slipspace with Cortana and Spartan-117 floating into the dark abyss.
-===Master Chief's raid on ''High Charity''===
+The Battle of the Ark ended the Human-Covenant War. Months later, a monument was erected near the remains of [[Voi]] in remembrance of those who died in the line of duty including Spartan-117 who is labeled [[Missing in action|MIA]]. The Arbiter, the Shipmaster and their brethren then departed Earth for [[Sanghelios]].<ref name="epi"/>
-{{Main|Raid on High Charity}}
-While Johnson, 'Vadam, and 'Vadum rounded up the UNSC and Sangheili survivors from the battle, John-117 took a Banshee and [[Raid on High Charity|infiltrated]] the Flood-infested ''High Charity''. The Spartan fought through swarms of Flood and successfully recovered Cortana, who indeed still held the activation index from Installation 04. Under Cortana's guidance, John-117 sabotaged the city's reactors, causing a series of explosions that crippled the Gravemind and destroyed ''High Charity''. 'Vadam arrived shortly after, and the trio fled onboard a crashed Pelican.{{Ref/Level|Id=cortana|H3|[[Cortana (level)|Cortana]]}}
-{{clear|left}}
-===Finishing the fight===
-{{Main|Raid on Installation 08}}
-[[File:Halo3Mythos.jpg|thumb|300px|John-117, Thel 'Vadam, Sergeant Major Avery Johnson, and 343 Guilty Spark on the surface of Installation 08.]]
-{{Quote|multi=yes|q1=We are aboard, humans...and Elites. Will you not come with us, brother?|Rtas 'Vadum|q2=No. This is our fight. And I ''will'' see it finished.|Thel 'Vadam|Thel 'Vadam wishing to finish the fight alongside John-117.{{Ref/Reuse|halo}}}}
-With the index secured, Thel 'Vadam ordered Rtas 'Vadum to take the human and Sangheili survivors to leave the Ark, using the slipspace portal to Earth. 'Vadam accompanied John-117 and Cortana to the incomplete Halo. Sergeant Major Johnson piloted the UNSC ''Forward Unto Dawn'', which was left behind for their escape, to a safe location near the control room, then drove a Warthog to the control room. The Gravemind, meanwhile, had begun to rebuild itself on the new ring, and sent [[Flood dispersal pod]]s to stop the three interlopers. John-117, 'Vadam, and Johnson, with the assistance of local Sentinels, fought through the Flood and entered the Control Room. Inside, Spark explained that the new Halo would be ready to fire within days, to which the group, particularly Johnson, protested. When Guilty Spark informed the three that activating Halo now would destroy both the Ark and the installation, Johnson told him to "deal with it" and prepared to activate the ring.{{Ref/Reuse|halo}}
-Unwilling to let "his" ring be destroyed again, 343 Guilty Spark attacked the trio. He mortally wounded Johnson, took down the Master Chief's shields, and blew 'Vadam out of the room. Spark cornered John-117, but with the help of Johnson and his [[M6 Spartan Laser|Spartan Laser]], John-117 defeated Guilty Spark and initiated the firing sequence of the new Halo. The incomplete Halo began ripping itself apart under the charging sequence. Fighting past the Flood and the Sentinels that have turned on them, John-117 and 'Vadam took Johnson's Warthog and rushed towards the ''Dawn'' as the incomplete Halo powered up and started breaking apart. The two drove their way through hordes of battling Flood and Sentinels. The two made it onto the ''Dawn''{{'}}s hangar bay, from where 'Vadam ran to the bridge while John-117 inserted Cortana into a holotank in the hangar bay, so she could activate the ''Dawn''{{'}}s engines. The ''Dawn'' left the ring just as it fired.{{Ref/Level|Id=halo|H3|[[Halo (Halo 3 level)|Halo]]}} The firing sequence shook the ring into pieces and heavily damaged Installation 00. The Slipspace portal collapsed as the ''Dawn'' entered it, and while the forward half with 'Vadam made it to Earth, the rear half fell out of Slipspace at an unknown location, leaving John-117 and Cortana stranded in space.{{Ref/Reuse|epi}}
 ==Aftermath==
-===The Flood===
+{{Quote|For us, the storm has passed. The war is over. But let us never forget those who journeyed into the howling dark, and did not return. For their decision required courage beyond measure; sacrifice, and unshakable conviction that their fight, our fight, was elsewhere. As we start to rebuild, this hillside will remain barren. A memorial to heroes fallen. They ennobled all of us, and they shall not be forgotten.|[[Fleet Admiral]] [[Terrence Hood]] in the memorial ceremony}}
-[[File:H3 - I08 Detonates.png|300px|thumb|Installation 08 fires above the Ark, severely damaging everything on its surface.]]
-On December 14, 2552, just three days after the battle and the ring's activation, 000 Tragic Solitude marshalled his Sentinels to construct a [[containment shield]] around the remains of ''High Charity's'' ruins, in fear that any few surviving Flood remnants would escape the crash site. Furthermore, he instructed his Sentinels to raze a perimeter, and the local [[refugia]] modified to ensure no nearby [[Sentience|sentient]] life survived, thus depriving the Flood of any host bodies in close proximity.{{Ref/Game|Id=idle hands ii|HW2|Phoenix Log#The Archive 2|Phoenix Log – "Idle Hands II"}} By [[2553#February|February 19, 2553]], the Flood remnants were contained within the rubble of ''High Charity'',{{Ref/Game|Id=uncomfortable i|HW2|Phoenix Log#Manifestation 2|Phoenix Log – "An Uncomfortable Truth I"}} with a [[battalion]] of Sentinels patrolling in the vicinity of the shield to prevent both the Flood from escaping and future "invaders" from releasing them.{{Ref/Reuse|idle hands ii}}
-However, their defenses were proven to be ineffective, with [[Banished]] forces, led by Jiralhanae [[Voridus]], [[Outbreak on Installation 00|releasing the Flood]] from the ruins of ''High Charity'' and providing them with hosts to infect during the [[Second Ark Conflict]] on [[2559#June|June 4, 2559]].{{Ref/Reuse|wrong}} This inadvertently caused a Flood outbreak onto the installation, leading to a desperate struggle between the Banished and the parasite. Ultimately, the Banished managed to destroy a [[Proto-Gravemind]] that was moments away from becoming a Gravemind and the Ark's Sentinels and the Banished managed to once again contain the Flood.{{Ref/Level|HW2|Manifestation}}
-===The Covenant===
-{{Main|Dhas Bhasvod's Covenant|Covenant remnants}}
-Despite the death of Truth and the vast majority of his forces, as well as the ravaging of the Ark, a [[Dhas Bhasvod's Covenant|small sliver of the Jiralhanae loyalist forces]] remained inside the ''Anodyne Spirit'' which shielded them for the firing of [[Installation 08]]. The survivors guarded it for years using stocked supplies as well as Covenant-issued equipment{{Ref/Reuse|Id=Sacrifice}} and had access to numerous Covenant vehicles.{{Ref/Reuse|divinechapt2}}
-Although the Battle of Installation 00 marked the end of the Human-Covenant War, numerous new [[Covenant remnants|splinter factions from the Covenant]] were created in its wake. These factions ranged from pragmatic mercenaries to fanatical religious cultists.{{Ref/Comic|Halo: Escalation|Issue=[[Halo: Escalation Issue 5|5]]}} These factions would come into [[Post-Covenant War conflicts|conflict with each other]], with notable conflicts like [[Sangheili-Jiralhanae war|a war between the Sangheili and the Jiralhanae]] following the Great Schism, and [[Blooding Years|numerous civil conflicts]] fought between the Swords of Sanghelios and various other Sangheili factions.{{Ref/Site|URL=https://www.halowaypoint.com/en-us/universe/locations/sanghelios|Site=Halo Waypoint|Page=Universe - Locations - Sanghelios|D=20|M=10|Y=2021}}
-===''UNSC Forward Unto Dawn''===
+===Installation 00 and the Flood===
-{{Main|Battle of Requiem}}
+The firing of the Halo ring completely obliterated the Ark while killing the Flood forces around Installation 00, including the Gravemind commanding the massing Flood amid the battle.<ref name="Array"/>
-The Portal between Installation 00 and Earth collapsed while {{UNSCShip|Forward Unto Dawn}} was still inside it. As a result, the ship was cut in half; the front arriving at Earth and the back half being lost in space. Thel 'Vadam, sitting on the bridge at the time, was part of the front half but, without any engines, soon crashed into the ocean, from where he was rescued by UNSC forces on Earth. John-117 and Cortana were in the rear half, and though they survived the Portal’s collapse, they were stranded in space and declared MIA. John-117 went into cryo-sleep while Cortana activated a [[distress beacon]] indicating their status.{{Ref/Reuse|epi}} After drifting in an unknown region of space for over four years until [[2557#July|2557]],{{Ref/Level|H4|[[Dawn (level)|Dawn]]}} the rear half of the ''Dawn'' was caught in the [[gravity well]] of a Forerunner [[shield world]] known as [[Requiem]],{{Ref/Level|Id=H4|H4|[[Requiem (level)|Requiem]]}} where they would come into [[Battle of Requiem|conflict]] with [[Jul 'Mdama's Covenant]].{{Ref/Reuse|H4}}
-==Legacy==
+===''Forward Unto Dawn''===
-===Voi Memorial===
+The Portal between [[Installation 00]] and Earth collapsed while ''[[UNSC Forward Unto Dawn|Forward Unto Dawn]]'' was still inside it. As a result, the ship was cut in half; the front arriving at Earth and the back half being lost in space. The Arbiter, sitting on the bridge at the time, was part of the front half but, without any engines, soon crashed. However, Spartan-117 and Cortana were in the rear half and were missing.
-{{Quote|For us, the storm has passed. The war is over. But let us never forget those who journeyed into the howling dark, and did not return. For their decision required courage beyond measure; sacrifice, and unshakable conviction that their fight, our fight, was elsewhere. As we start to rebuild, this hillside will remain barren. A memorial to heroes fallen. They ennobled all of us, and they shall not be forgotten.|[[Fleet Admiral]] [[Terrence Hood]] in the memorial ceremony{{Ref/Reuse|epi}}}}
-A [[Voi Memorial|monument]] was made near the town of Voi, not far from the portal structure. It read, "''In memory of those fallen in the defense of Earth and her Colonies. [[2553|March 3, 2553]].''" On it were photos of UNSC personnel who went through the portal but did not return; John-117 was honored with an etching of the number "117". With the exception of Thel 'Vadam, the Sangheili were not present at the dedication service, instead remaining aboard ''Shadow of Intent''. After the ceremony, Lord Hood, despite being unable to forgive the Sangheili for what they did to humanity at the beginning of the war, shook 'Vadam's hand and thanked him for standing beside the Master Chief at the Ark. The Arbiter then joined [[Rtas 'Vadum]] on the bridge of ''Shadow of Intent'', both agreeing to return to [[Sanghelios]] to ensure its safety. Thel 'Vadam was given command of the carrier and all Sangheili onboard departed for their homeworld.{{Ref/Reuse|epi}}
-===Installation 00===
+It is known that Cortana and [[John-117|Spartan-117]] survived the Portal's collapse. Spartan-117 went into a cryo-chamber while Cortana activated an [[emergency locator beacon]] indicating their status. After drifting in an unknown region of space for at least 5 years, the rear half of the ''Dawn'' was caught in the [[gravity well]] of a Forerunner [[shield world]] known as [[Requiem]].<ref name="epi"/>
-{{Quote|no=three|1=Jerome-092|q1=Isabel, where did all this wreckage come from?|2=Isabel|q2=There was a battle here near the end of the war. The Master Chief saved us all.|3=Jerome-092|q3=It's good to know John's still out there.|4=[[Isabel]] and [[Jerome-092]] while fighting the [[Banished]] on Installation 00.{{Ref/Reuse|HW2}}}}
-The wreckage from the Battle of Installation 00 remained on the surface of the Ark.{{Ref/Level|Id=HW2|HW2|A New Enemy}}{{Ref/Level|Id=wrong|HW2|What Could Go Wrong?}} Over two years later on [[2555|March 20, 2555]], during [[Operation: FAR STORM]], [[Luther Mann]] and [[N'tho 'Sraom]] arrived at the Citadel to stop the Halos from firing. Scattered around the basin were the remains of human and Covenant vehicles left over from the battle, including the empty husks of the two [[Deutoros-pattern Scarab|Scarabs]].{{Ref/Reuse|HitD252}} The firing of the Halo ring caused unprecedented damage to the Ark while sterilizing most of the Flood forces around and on the installation, including the Gravemind commanding the massing Flood amid the battle. Installation 00 was severely damaged,{{Ref/Reuse|epi}} and its monitor [[000 Tragic Solitude]], although inflicted with a state of [[rampancy]] from the ring's explosion, began repairing the installation.{{Ref/Book|Halo Mythos: A Guide to the Story of Halo|Page=154-155}}
-In [[2555#March|March 2555]], [[000 Tragic Solitude]] sought revenge against humanity for damaging the Ark years prior. To do so, the ancilla placed the remaining Halos on a brief countdown to activation, prompting a joint UNSC-[[Swords of Sanghelios]] [[Operation: FAR STORM|mission]] to the installation to stop the rings from firing. After Solitude's plan was thwarted, the UNSC established research facilities on the Ark.{{Ref/Novel|HitD|Page=?}} The UNSC's research team was able to repair the Ark from the damage done in the battle by directing the Ark's [[Retriever Sentinel]]s to mine lifeless systems for the needed materials for repairs.{{Ref/Game|HW2|Phoenix Log#The Signal 2|Phoenix Logs - "The Healing of Old Wounds"}}
+===Legacy===
+A monument was made near the town of Voi where the Forerunner artifact had been built. It reads "''In memory of those fallen in the defense of Earth and her Colonies. [[2553|March 3, 2553]].''" On it were the pictures of the most outstanding UNSC personnel who went through the Portal but did not return. Spartan-117 is honored on it by a "117" scratched onto the monument and a [[Master Chief Petty Officer of the Navy]] badge taped on the monument.
-In [[2558#September|September 2558]], the [[Jiralhanae Chieftain]] [[Hekabe]] attempted to unleash the [[Sharquoi]] on the planet [[Carrow]], having retrieved the Sharquoi control device, the ''[[vertex]]'', from the Ark during the Battle of Installation 00. Hekabe's plan was narrowly foiled by [[Gray Team]], [[Rojka 'Kasaan]] and elements of the [[Surakan Militia Volunteers]].{{Ref/Reuse|envoy}}
+The Sangheili overlooked the [[Voi Memorial]], with Thel 'Vadam being the only to attend due to fighting alongside SPARTAN-117. After the ceremony, he and Lord Hood, who still can't forgive the Sangheili for what they did to Humanity at the beginning of the war, declare friendship after both of their races fought alongside the other at the Ark. He then departed to the ''Shadow of Intent'' via Phantom, and joined [[Rtas 'Vadum]] on the bridge, both agreeing to return to [[Sanghelios]] to "know that it is safe". Thel 'Vadam was given command of the carrier and all Sangheili onboard departed for their homeworld.<ref name="epi"/>
-The [[Banished]] arrived on the fully-repaired Ark in [[2558#November|November 2558]], killing UNSC personnel across the installation. In [[2559#March|March 2559]], the crew of the newly arrived {{UNSCShip|Spirit of Fire}} [[Second Ark Conflict|engaged]] the Banished with help from [[Isabel]], the logistics AI of [[Henry Lamb Research Facility|one of the UNSC research facilities]].{{Ref/Reuse|HW2}} Over the course of the battle, they would engage not only the Banished, but the few [[Dhas Bhasvod's Covenant|surviving Covenant forces]] under the command of [[Prelate]] [[Dhas Bhasvod]] allied with forces from the [[Keepers of the One Freedom]].{{Ref/Novel|Id=divinechapt2|DW|Chapter=2}}
 ==Participants==
-{{col-begin}}
+{{Col-begin}}
 {{col-2}}
-===UNSC===
+===Ships===
-===Naval assets===
+'''UNSC'''
-====Starships====
+*{{UNSCShip|Forward Unto Dawn}}
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
+*{{UNSCShip|Aegis Fate}}
-|-
-! Tactical grouping
+'''Covenant separatists'''
-! Class
+*''[[Shadow of Intent]]''
-! Name
+*''[[Pious Inquisitor]]''
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="1" | [[Seventh Fleet]]
-| rowspan="1" | {{Class|Charon|light frigate}}
-|{{UNSCShip|Forward Unto Dawn}}
-|Destroyed, split in half
-|}
-====Military personnel====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="3" |[[UNSC Navy]]
-|[[Master Chief Petty Officer]]
-|[[John-117]]{{Ref/Reuse|theark}}
-|Survived, listed as MIA
-|-
-|[[Commander]]
-|[[Miranda Keyes]]{{Ref/Reuse|theark}}
-|KIA
-|-
-|[[Lieutenant]]
-|[[Hocus]]{{Ref/Reuse|theark}}
-|Unknown
-|-
-| rowspan="3" |[[UNSC Marine Corps]]
-|[[Sergeant Major]]
-|[[Avery Johnson]]{{Ref/Reuse|theark}}
-|KIA
-|-
-|[[Private First Class]]
-|[[Chips Dubbo]]{{Ref/Reuse|theark}}
-|Survived
-|-
-|[[Gunnery Sergeant]]
-|[[Marcus Stacker]]{{Ref/Reuse|theark}}
-|Survived
-|}
 ===Units===
-====Ground forces====
+'''UNSC'''
-*[[UNSC Navy]]
+*[[UNSC Home Fleet]]
-*[[UNSC Marine Corps]]
+*[[105th Shock Troops Division|105th ODST Division]]
-**[[S4/BLCE/1/7]]
+**[[7th Shock Troops Battalion|7th ODST Battalion]]
-**[[S4/BRT/1/7]]
+**[[11th Marine Force Reconnaissance/ODST]]
-***[[Alpha Company, S4/BRT/1/7|Alpha Company]]
+*[[M/LAT-16]]
-***[[Charlie Company, S4/BRT/1/7|Charlie Company]]
+*[[S/VRC-8]]
-**[[Orbital Drop Shock Trooper]]s
+*[[S4/BLCE/1/7]]
-***[[105th Shock Troops Division|105th ODST Division]]
+*[[S4/BRT/1/7]]
-****[[7th Shock Troops Battalion]]{{Ref/Reuse|theark}}
+**[[Alpha Company, S4/BRT/1/7|Alpha Company]]
-***[[11th Marine Force Reconnaissance/ODST|11th MFR/ODST]]{{Ref/Reuse|Blind Faith}}
+**[[Charlie Company, S4/BRT/1/7|Charlie Company]]
-====Naval forces====
-*[[UNSC Home Fleet|Home Fleet]]
+'''Covenant separatists'''
-**[[Seventh Fleet]]
+*[[Fleet of Retribution]]
-***[[Battle Group Victory]]
-===Artificial intelligence===
+'''Covenant'''
-{{Main|Artificial intelligence}}
+*[[Truth's fleet]]
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-|[[Cortana]]
-|Survived, listed as MIA
-|}
-===Covenant separatists===
-===Naval assets===
-====Starships====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Tactical grouping
-! Class
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="2" |[[Fleet of Retribution]]
-| {{Class|CAS|assault carrier}}
-|''[[Shadow of Intent]]''{{Ref/Reuse|theark}}
-|Survived
-|-
-| {{Pattern|Ket|battlecruiser}}
-|''[[Pious Inquisitor]]''{{Ref/Novel|Id=EVG|EVG|Page=124}}
-|Survived
-|}
-====Military personnel====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="4" |Unknown
-|[[Fleetmaster]]
-|[[Rtas 'Vadum]]{{Ref/Reuse|theark}}
-|Survived
-|-
-|[[Arbiter]]
-|[[Thel 'Vadam]]{{Ref/Reuse|theark}}
-|Survived
-|-
-| rowspan="2" |[[Special Operations Sangheili|Special Operations]]
-|[[Usze 'Taham]]{{Ref/Site|Id=Coop|D=14|M=11|Y=2014|URL=http://halo.bungie.net/News/content.aspx?type=topnews&link=thesoundofsack|Site=bungie.net|Page=The Tru7h About Co-Op in Halo 3}}
-|Survived
-|-
-|[[N'tho 'Sraom]]{{Ref/Reuse|Coop}}
-|Survived
-|}
-===Units===
-====Ground forces====
-*[[Special Warfare Group|Fleet of Retribution Special Warfare Group]]
-====Naval forces====
-*[[Fleet of Retribution]]
-**One [[battle group]]{{Ref/NoteReuse|composition}}
 {{col-2}}
-===Covenant===
+===Personnel===
-===Naval assets===
+'''UNSC'''
-====Starships====
+*[[Commander]] [[Miranda Keyes]]
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
+*[[Master Chief Petty Officer]] [[John-117]]
-|-
+*[[Cortana]]
-! Tactical grouping
+*[[Lieutenant]] [[Hocus]]
-! Class
+*[[Sergeant Major]] [[Avery Junior Johnson]]
-! Name
+*[[Gunnery Sergeant]] [[Reynolds]]
-! Status<!--This refers to their status after the battle, not their overall status-->
+*[[Gunnery Sergeant]] [[Stacker]]
-|-
+*[[Staff Sergeant]] [[Banks|Marcus Banks]]
-| rowspan="3" |[[Truth's fleet]]
+*[[Private First Class]] [[Chips Dubbo]]
-| [[Forerunner]] [[keyship]]
-|''[[Anodyne Spirit]]''
-|Survived, assumed destroyed{{Ref/Reuse|Sacrifice}}
-|-
-| {{Pattern|Varric|heavy cruiser}}
-|''[[Foebane|Gathering of Praise]]''{{Ref/Reuse|loot5}}{{Ref/Reuse|envoy}}
-|Escaped
-|-
-| [[Covenant frigate]]
-|''[[Twilight Compunction]]''{{Ref/Reuse|loot5}}
-|Destroyed
-|}
-====Military personnel====
+'''Covenant separatists'''
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
+*[[Shipmaster]] [[Rtas 'Vadum]]
-|-
+*[[Arbiter]] [[Thel 'Vadam]]
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="2" |Unknown
-|[[Shipmaster]]
-|[[Hekabe]]
-|Escaped
-|-
-|[[Jiralhanae Chieftain|Chieftain]]
-|[[Cethegus]]
-|KIA
-|}
-====Non-combatants====
+'''Covenant'''
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
+*[[Prophet of Truth]]
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-|[[High Council]]
-|[[Hierarchs|Hierach]]
-|[[Prophet of Truth]]
-|KIA
-|}
-===Units===
+'''Forerunner'''
-====Naval forces====
+*[[343 Guilty Spark]]
-*[[Truth's fleet]]†
+*[[05-032 Mendicant Bias|032 Mendicant Bias]]
-**[[Voice of Maardoth]]
+'''Flood'''
+*[[Gravemind]]
 {{col-end}}
-==Gallery==
-<gallery>
-File:H3 SpaceBattle Concept.jpg|Concept art of the [[space warfare|space battle]] above Installation 00.
-File:H3 Ark SentinelsVsCovenant.png|Covenant infantry and Shade turrets attacking Aggressor Sentinels.
-File:H3 CethegusCharging.png|John-117 fires at Cethegus at the Cartographer.
-File:Cool odsts.jpg|ODSTs attacking a War Chieftain and an Anti-Air Wraith.
-File:Anti-Anti-Air.jpg|An Anti-Air Wraith fires upon an AV-14 Hornet and a Pelican.
-File:H3 Brute Pack.png|A War Chieftain leading his Jiralhanae pack in defense of a barrier tower.
-File:H3 BarrierTowerBattle.png|John-117, Thel 'Vadam, and Sangheili fighting a Jiralhanae pack.
-File:H3 TheCovenant CitadelDogfight.png|Hornets and Banshees fighting above the Citadel.
-File:H3 Scorpion firing at a Scarab.jpg|A Scorpion charges at a Scarab at the Citadel.
-File:H3-JohnFlamethrower.jpg|John-117 fighting a Flood combat form inside ''High Charity''.
-File:3Way2-large.jpg|John-117 and Thel 'Vadam come across Sentinels fighting Flood combat forms on Installation 08.
-File:H3 Installation 08 blowing up.jpg|John-117 and 'Vadam escape Installation 08 on a Warthog.
-File:HaloLegends-Origins-ArkHalo.png|Installation 08 fires and crumbles over the Ark, severely damaging everything on its surface.
-File:H3 - I08 Explodes.png|Installation 08 severely damaging the Ark.
-</gallery>
 ==List of appearances==
-*''[[Halo: First Strike]]''
-**''[[Petra]]'' {{Mo}}
 *''[[Halo 3]]'' {{1st}}
+*''[[Halo: First Strike]]'' {{Mo}}
 *''[[Halo Legends]]''
 **''[[Origins]]''
-*''[[Halo: Evolutions]]''
+*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
-**''[[The Return]]'' {{C|Flashback only}}
 **''[[From the Office of Dr. William Arthur Iqbal]]'' {{Mo}}
-*''[[Halo: Broken Circle]]'' {{Im}}
-*''[[Halo: Hunters in the Dark]]'' {{Mo}}
-*''[[Halo Mythos: A Guide to the Story of Halo]]'' {{Mo}}
-*''[[Halo: Tales from Slipspace]]''
-**''[[Dominion Splinter]]'' {{C|Flashback only}}
-*''[[Halo Wars 2]]'' {{Mo}}
-*''[[Halo: Envoy]]'' {{Mo}}
-*''[[Halo: Legacy of Onyx]]'' {{Im}}
-*''[[Halo: Bad Blood]]'' {{Mo}}
-*''[[Halo: Shadows of Reach]]'' {{Im}}
-**''[[Sacrifice]]'' {{Mo}}
-*''[[Halo: Divine Wind]]'' {{Mo}}
-*''[[Halo Infinite]]'' {{Im}}
-*''[[Halo: Outcasts]]'' {{Im}}
-==Notes==
-{{Ref/Notes}}
 ==Sources==
-{{Ref/Sources}}
+<references/>
-{{Engagements in the Battle of Installation 00}}
 {{Human-Covenant War}}
-{{DEFAULTSORT:Installation 00}}
+[[Category:Battle|Installation 00]]
-[[Category:UNSC victories]]
+[[Category:Human-Covenant War]]
-[[Category:Battle of Installation 00| ]]
+[[Category:UNSC Victories]]
-[[Category:Engagements in the Battle of Installation 00| ]]