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| {{Status|Canon}} | | {{Era|Human|HCW}} |
| [[File:MA5B AR ammo.jpg|thumb|250px|A 7.62×51mm cartridge.]] | | [[File:MA5B AR ammo.jpg|thumb|100px|A 7.62x51mm from ''[[The Art of Halo 3]]''.]] |
| The '''7.62×51mm''' cartridge, sometimes shortened to '''7.62mm''',<ref>''[[Halo: Combat Evolved Manual#Human Weapons|Halo: Combat Evolved Manual, Page 17, "MA5B Assault Rifle"<]]''</ref> is a heavy ammunition size in which the rifles and machine guns of the [[United Nations Space Command]] are commonly chambered.{{Ref/Reuse|ENC316}}{{Ref/Reuse|EVGAR}}{{Ref/Reuse|EVGMG}} A great variation of ammunition types for this cartridge are employed.
| | '''M118 7.62x51mm Full Metal Jacket Armor-Piercing''' is an ammunition used in their [[MA5 Series]] of assault rifles as well as the [[M392 Designated Marksman Rifle]]. It was originally developed by the [[NATO]] organization in the late 20th Century. It is used due to its reliability and heavy power. As it is used with the MA5 rifles, which are one of the most common armaments in the [[UNSC Marine Corps|Marine Corps]], it is probably the most commonly fired and used round in the [[UNSC]] ground forces. It can be regularly found in packs littered around battlefields. |
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| == Overview == | | == Overview == |
| [[File:HINF M392Bandit Render 1.jpg|thumb|250px|An M392 Bandit and several M118 7.62x51mm FMJ-AP rounds.]] | | The round is effective against infantry, especially against unarmored or unshielded opponents. [[Energy Shields|Energy shields]] drastically reduce the effectiveness of this round, as it does not have enough kinetic energy to significantly drain the shields. The round is also largely ineffective against vehicles, as it is not significantly armor-piercing. Massed fire from a squad of Marines, however, is enough to drain shields and destroy or disable most vehicles short of tanks due to the sheer number of rounds fired. Thus, this is primarily an infantryman's round for use against other infantry. |
| This cartridge shares its dimensions with a form of rifle ammunition developed in the 20th century, employed commonly across the nations of the [[North Atlantic Treaty Organization]] under the designation [[Wikipedia:7.62x51mm NATO|7.62 NATO]]. The [[UNSC]] utilize it in an enormous variety of weapons, including:
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| *The [[MA5 series]] assault rifles, including the [[MA37]] and [[MA40 assault rifle|MA40]].{{Ref/Reuse|EVGAR}}
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| *The [[M392 DMR|M392]]{{Ref/Reuse|EVGDMR}} and [[M395 DMR|M395 Designated Marksman Rifle]]s.{{Ref/Reuse|H4VGDMR}}
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| *The [[M739 SAW|M739 Light Machine Gun]].{{Ref/Reuse|H4VGSAW}}
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| *The [[M247 general purpose machine gun]].<ref name="EVGMG">''[[Halo: The Essential Visual Guide]]'', Machine Gun Turret</ref>
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| *The [[AIE-486H Heavy Machine Gun]].{{Ref/Book|Id=ENC331|Enc11|Page=331}}
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| *The co-axial [[M231 Medium Machine Gun|M231 Medium Machine Guns]] of some [[M808|M808 Scorpion tanks]].<ref name="BnetVehicles">''[http://halo.bungie.net/News/content.aspx?type=topnews&cid=1637 Bungie.net, The Bungie Guide to Vehicles]''</ref>
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| *The hull-based [[M247T medium machine gun|M247T Medium Machine Guns]] of [[M808C Scorpion|M808C Scorpion tank]].<ref name="EVG164">''[[Halo: The Essential Visual Guide]]'', Page 164, "SCORPION"</ref>
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| *The [[M199 heavy machine gun]]s of [[AV-49 Wasp]] VTOLs.<ref name="HSFM">''[[Halo: Official Spartan Field Manual]]'', Page 204, "WASP"</ref>{{Ref/Book|Id=Enc22|Enc22|Page=156}}
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| Weapons chambered for 7.62×51mm ammunition, such as the [[MA5B assault rifle]], are considered to be powerful by UNSC soldiers.<ref name= "Flood1"/>
| | == Background == |
| | {{SeeWikipedia|7.62x51 NATO}} |
| | [[File:NATO_7_62x51.jpg|thumb|right|150px|7.62x51mm rounds, with a ruler and AA battery for scale.]] |
| | The 7.62x51mm NATO was originally developed by [[wikipedia:NATO|NATO]], a military alliance between national governments, in the middle of the 20th century. It was developed to be reliable when used in fully automatic weapons, to have a large punch, and to standardize service rifle calibers between governments, in order to improve logistics. It replaced a variety of smaller ammunition and largely achieved the goals of development. |
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| == Variants ==
| | It is a full-power rifle round in the 20th century, and is fairly common in machine guns, battle rifles, and sniper rifles, but not in lightweight assault rifles due to recoil and the size of 7.62x51mm NATO weapons; they are usually larger and heavier to accommodate the longer, more powerful cartridge. Its ineffectiveness in individual infantry weapons led to the adoption of the [[wikipedia:5.56x45mm NATO|5.56x45mm NATO]] round, due to better controllability and the ability to fit it into small, lightweight assault rifles. |
| ===M118 FMJ-AP===
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| M118 FMJ-AP ([[wikipedia:Full metal jacket (ammunition)|full metal jacket]], [[wikipedia:Armor-piercing bullet|armor-piercing]]) rounds are the standard-issue ammo type employed by the [[MA5 series|UNSC's assault rifles]],<ref name="EVGAR">[[Halo: The Essential Visual Guide]], Assault Rifle</ref> the [[M392]]<ref name="EVGDMR">[[Halo: The Essential Visual Guide]], DMR</ref> and [[M395]] DMRs,<ref name="H4VGDMR">[[Halo 4: The Essential Visual Guide]], DMR</ref> the [[M739 Light Machine Gun|M739 LMG]],<ref name="H4VGSAW">[[Halo 4: The Essential Visual Guide]], SAW</ref> and the [[AIE-486H Heavy Machine Gun|AIE-486H HMG]].{{Ref/Reuse|ENC331}} The projectile's armor-piercing capabilities stem from its specially hardened construction.<ref name= "Flood1">''[[Halo: The Flood]]'', Chapter 1</ref> [[UNSC Marine Corps Battle Dress Uniform|UNSC infantry combat armor]] is capable of preventing lethal penetration at close range from a limited burst at the cost of bruising and significant discomfort,<ref name="TML">''[[Halo: Evolutions]]'', ''[[The Mona Lisa]]'', section ">Lopez 1527 hours"</ref> though infantry and even light vehicles or aircraft such as un-shielded [[Covenant]] [[Banshees]] are susceptible to fatal damage under sustained, accurate fire.<ref name="Flood2">''[[Halo: The Flood]]'', ''Chapter 2''</ref> [[Energy shielding|Energy shields]] drastically reduce the ammunition's stopping power, as a great deal of concentrated fire from multiple weapons - or an extended period of continuous automatic fire from a single weapon - is needed to overwhelm them.<ref name= "Flood1"/> The rounds are, however, capable of taking down unprotected targets quickly and cleanly.<ref name="ENC316">''[[Halo Encyclopedia (2009 edition)|Halo Encyclopedia: The Definitive Guide to the Halo Universe (2011 edition)]]'', Page 316</ref>
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| They are distributed to troops in 120-round packs for use with assault rifles,<ref>''[[Halo: Combat Evolved]]'', Gameplay</ref> and feed in this capacity via 32-,{{Ref/Reuse|ENC316}} 36-,<ref name="H5G">''[[Halo 5: Guardians]]'', Gameplay</ref> or 60-round [[wikipedia:Magazine (firearms)#Detachable box magazines|detachable box magazines]].{{Ref/Reuse|ENC316}}
| | It is not known why the 5.56x45mm NATO round disappears in the ''Halo'' universe, but it could be possible that weapons technology advanced so much as to fit enough recoil control systems on a firearm to allow this powerful round be used as an infantry rifle round (the same could apply to the [[M6 series]]). It also seems that in the ''Halo'' universe, the 7.62x51mm round is no longer considered a full-power rifle cartridge, explaining why weapons that use the round such as the MA5 series are considered assault rifles when they would be considered battle rifles by today's standards. |
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| ===Shredder===
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| Shredder rounds are an alternate 7.62×51mm ammunition type occasionally employed with the [[MA5B assault rifle]].<ref name="TFoRPrologue">''[[Halo: The Fall of Reach]]'', Prologue</ref> The projectiles they fire are designed to splinter on impact,<ref>''[[Halo: The Fall of Reach]]'', Chapter 29</ref> and are highly effective against lightly-armored infantry like [[Covenant]] [[Unggoy]]{{Ref/Reuse|TFoRPrologue}} and building materials like marble tiles and wood.<ref name="TFoR22">''[[Halo: The Fall of Reach]]'', Chapter 22</ref> Ammunition of this type was used by the [[SPARTAN-II]]s of [[Blue Team]] to engage a horde of Unggoy in the [[Battle of Jericho VII]].{{Ref/Reuse|TFoRPrologue}} Another instance of their use by Blue Team was at [[Cote d'Azur]], when engaging a pair of [[Mgalekgolo]] in a museum. After finding their AP rounds were ineffective against the Mgalekgolo's armor, [[John-117]] ordered the [[SPARTAN-IIs]] to use shredder rounds to fire at the floor beneath the Hunters, causing them to fall to the level below.{{Ref/Reuse|TFoR22}}
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| ===Hollow-point===
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| 7.62×51mm [[wikipedia:Hollow-point bullet|hollow-point]] ammunition is a variant type of round which is optimal for use against unprotected biological targets, also employed occasionally in the [[MA5B]]. A situationally useful attribute of this ammo type is that it is unlikely to cause unwanted to damage to potentially vulnerable structures like equipment cabinets, viewports and [[starship]] hulls, making them a useful tool when taking a ship. Magazines containing this ammunition are recognizably marked with red paint.<ref>''[[Halo: Silent Storm]]'', Chapter 24</ref>
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| ===AP-T===
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| 7.62mm AP-T ([[wikipedia:Armor-piercing bullet|armor-piercing]], [[wikipedia:Tracer ammunition|tracer]]) ammunition is employed in the [[M231 Medium Machine Gun|M231 MMG]] co-axially mounted on the [[M808B Scorpion]].{{Ref/Reuse|BnetVehicles}}
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| ===HEDP===
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| 7.62mm HEDP (high-explosive dual-purpose) ammunition is a variant of the 7.62×51mm round which is loaded in the machine guns of [[ONI Wasp|AV-49 Wasps]] in the service of the [[Office of Naval Intelligence]] security teams.<ref name="CFBH">[https://www.halowaypoint.com/en-us/news/bounty-hunters ''Halo Waypoint'': Canon Fodder - Bounty Hunters]</ref> The projectiles detonate on impact.<ref>''[[Halo 5: Guardians]]'', [[Warzone]] gameplay</ref> | |
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| ==Silver Timeline==
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| {{Main|Silver Timeline}}
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| ===APHE===
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| In the Silver timeline, John-117's [[MA5C]] utilizes a variant of gyroscopically-stabilized APHE (armor-piercing high-explosive) rounds optimized to deplete Covenant energy shields and penetrate [[nanolaminate|nanolaminate armor]].{{Ref/Generic|[[Halo: The Television Series Season One#Paramount+ UK launch|''Halo: The Television Series'' Season One Paramount+ UK launch event]]|MA5 Individual Weapon System description}}
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| ==Gallery==
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| <gallery>
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| HCE_M118_Ammo.png|An M118 ammo pack in ''Halo: Combat Evolved''.
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| File:H3ODST MA5 Ammo.jpg|A packet of M118 ammunition.
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| File:TML_M118-pulled-out.png|A 7.62mm bullet extracted from [[Zhao Heng Lopez]]'s shoulder in ''[[The Mona Lisa]]''.
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| File:M118 7 62x51mm FMJ-AP.jpg|Closeup of an 7.62×51mm AP cartridge in an MA5D's magazine in ''[[Halo 4]]''.
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| File:H5G_M118bullet.png|thumb|A round of 7.62×51mm AP ammunition seen in its magazine in ''[[Halo 5: Guardians]]''.
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| File:H2A MA5 Spent Brass.jpg|thumb|7.62×51mm shell casings ejecting from a firing [[MA5D assault rifle]] in ''[[Halo 2: Anniversary]]'' multiplayer.
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| File:HR Expended 7.62x51mm.jpg|thumb|Spent 7.62×51mm casings ejecting from an [[MA37 assault rifle]] in ''[[Halo: Reach]]''.
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| File:HR MA37 Mag.jpg|thumb|The protruding baseplate of a 32-round detachable box magazine of 7.62×51mm ammo, used with the [[MA37]] in ''[[Halo: Reach]]''.
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| File:H3 Expended 7.62x51mm.jpg|thumb|7.62×51mm casings ejecting from an [[MA5C assault rifle]] during firing in ''[[Halo 3]]''.
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| File:H3 MA5C Magazine.jpg|thumb|The flush baseplate of a 32-round detachable box magazine used with the MA5C in ''[[Halo 3]]''.
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| File:HI 7.62x51mm NATO.jpg|thumb|A [[SPARTAN-IV program|Spartan-IV]] reloading a magazine of 7.62x51mm NATO into the [[MA40 assault rifle]] in ''[[Halo Infinite]]''.
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| File:HI 7.62x51mm Close.jpg|thumb|Closeup of a 7.62×51mm NATO cartridge in an [[MA40 assault rifle|MA40]]'s magazine in ''[[Halo Infinite]]''.
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| File:HI 7.62x51mm Firing.jpg|thumb|Spent 7.62×51mm shell casings ejecting from an [[MA40 assault rifle]] during firing in ''[[Halo Infinite]]''.
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| </gallery>
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| ==List of appearances== | | ==List of appearances== |
| {{col-begin}} | | {{Appearances|Halo: Combat Evolved|Halo: The Fall of Reach|Halo: The Flood|Halo: First Strike|i love bees|Halo Graphic Novel|Halo: Ghosts of Onyx|Halo: Uprising|Halo 3|Halo: Contact Harvest|Halo Wars|Halo: Evolutions - Essential Tales of the Halo Universe|Halo 3: ODST|Halo Legends|Halo: Reach}} |
| {{col-2}}
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| *''[[Halo: The Fall of Reach]]'' {{1st}}
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| *''[[Halo: Combat Evolved]]''
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| *''[[Halo: The Flood]]''
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| *''[[Halo: First Strike]]''
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| *''[[i love bees]]''
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| *''[[Halo: Ghosts of Onyx]]''
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| *''[[Halo Graphic Novel]]''
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| **''[[Breaking Quarantine]]''
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| *''[[Halo: Uprising]]''
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| *''[[Halo 3]]''
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| *''[[Halo: Contact Harvest]]''
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| *''[[Halo Wars]]''
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| *''[[Halo: Helljumper]]''
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| *''[[The Life]]''
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| *''[[Halo 3: ODST]]''
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| **''[[Sadie's Story]]''
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| *''[[Halo: Blood Line]]''
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| *''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
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| **''[[Pariah]]''
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| **''[[Dirt]]''
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| **''[[Blunt Instruments]]''
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| **''[[The Mona Lisa]]''
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| **''[[Palace Hotel]]''
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| **''[[Human Weakness]]''
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| **''[[The Return]]'' {{C|Motion comic only}}
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| {{col-2}}
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| *''[[Halo Legends]]''
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| **''[[Origins]]''
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| **''[[Homecoming]]''
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| **''[[Odd One Out]]'' {{C|Non-canonical appearance}}
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| **''[[Prototype]]''
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| **''[[The Babysitter]]''
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| **''[[The Package (animated short)|The Package]]''
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| *''[[Remember Reach]]''
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| **''[[Birth of a Spartan]]''
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| **''[[Patrol]]''
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| **''[[Deliver Hope]]''
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| *''[[Halo: Reach]]''
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| *''[[Halo: Fall of Reach]]''
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| **''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
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| **''[[Halo: Fall of Reach - Covenant|Covenant]]''
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| **''[[Halo: Fall of Reach - Invasion|Invasion]]''
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| *''[[Halo: Combat Evolved Anniversary]]''
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| **''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
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| *''[[The Commissioning]]''
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| *''[[Halo: The Thursday War]]''
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| *''[[Halo 4: Forward Unto Dawn]]''
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| *''[[Scanned]]''
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| *''[[Halo 4]]''
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| **''[[Spartan Ops]]''
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| *''[[Halo: Spartan Assault]]''
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| *''[[Halo: Initiation]]''
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| *''[[Halo: Escalation]]''
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| *''[[Halo 2: Anniversary]]''
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| *''[[Halo: Nightfall]]''
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| *''[[Halo 5: Guardians]]''
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| *''[[Halo Infinite]]''
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| {{col-end}}
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
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| {{Ammunition}} | | {{Ammunition}} |
