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{{Era|H1|H2|H3|HW|H3R|FOR|TF|FS|GOO|HGN|LE|RE|}}
{{Status|Canon}}
{{Ratings}}
{{Disambig header|the shotgun featured in ''[[Halo: Combat Evolved]]'' and ''[[Halo 2]]''|the shotgun featured in ''[[Halo 3]]'' and ''[[Halo 3: ODST|ODST]]''|M90A shotgun}}
{{Weapon
{{Weapon infobox
|image=[[Image:M90A CAWS.jpg|300px]]
|image=[[File:H2A M90Shotgun.png|300px]]
|name=M90 Close Assault Weapon System
|name=M90 Close Assault Weapon System
|manufacturer= [[Weapon System Technologies]]
|manufacturer=[[Weapon System Technology]]{{Ref/Reuse|BnetShotgun}}{{Ref/Book|Id=Enc22|Enc22|Page=173}}
|model=M90 CAWS [[DTM Series]]
|series=[[DTM series]]{{Ref/Reuse|BnetShotgun}}
|type=Close Assault Weapons System
|type=Pump-action shotgun{{Ref/Reuse|CEM}}{{Ref/Reuse|H2M}}
|cost=cR. 2200
|cost=
|size=Handheld, Two-Handed
|variant=[[M90A shotgun]]
*M90:
|service=*[[Insurrection]]
**Length: 118.3 centimeters
*[[Human-Covenant War]]
*M90A:
|affiliation=[[United Nations Space Command]]
**Length (o/a):123.9 cm (48.8 in.)
|length={{Convert|46.5|in|cm|disp=flip|sp=us}}{{Ref/Reuse|Enc22}}
**Length (barrel):61 cm (24 in.)
|width=
**Weight (empty):5.4 kg (11.9 lbs)
|height=
**Weight (loaded): 5.8 kg (12.8 lbs)
|weight=
| damage per hit=*Instant kill (Close range)
|ammotype=[[8-Gauge Magnum|M296 8-Gauge Magnum]]{{Ref/Reuse|Enc22}}
*Low-medium (medium ranges)
|capacity=
*None (long range)
|feed=12-shell dual-tubular non-detachable magazine{{Ref/Reuse|CEM}}{{Ref/Reuse|Enc22}}
| magazine= 8 gauge magnum (3.5”)
|operation=[[wikipedia:pump-action|Pump-action]]{{Ref/Reuse|CEM}}{{Ref/Reuse|H2M}}
*Earlier models: 12 Shells
|rate=
*M90A: 6 Shells
|velocity=
| maxammo=
|optics=
| fire=Pump Action
|range=
| ammotype=[[Soellkraft 8 Gauge Shell]]
| operation=Manual Pump-Action
| rate of fire= 1.5 shell/second
| velocity=300-400 m/s (980-1300 f/s)
| accuracy=Low to Medium
| range=Short to medium range, 40 metres.
| era=
| counterpart=
| counterweapon=  
| affiliation=[[United Nations Space Command]]
}}
}}
{{Quote|I believe that the sound of racking the pump of a shotgun is universally recognized as ‘kiss your ass goodbye’.| Unknown Marine}}
The '''M90 Close Assault Weapon System''' (CAWS),{{Ref/Book|Id=ENC324|Enc11|Page=324}} also known as the '''M90 Close Assault Shotgun''',{{Ref/Novel|Id=FS6|HFS|Chapter=6}} '''M90 assault shotgun''', or simply the '''M90''',{{Ref/Novel|Id=SS25|HSS|Chapter=25}} is a pump-action shotgun in service with [[UNSC]].{{Ref/Reuse|ENC324}} It is a military variant of the prolific [[DTM series]] of shotguns from [[Weapon System Technology]].{{Ref/Site|Id=BnetShotgun|URL=http://halo.bungie.net/projects/halo3/content.aspx?link=h3shotgun|Site=Bungie.net|Page=The M90A Shotgun|D=08|M=6|Y=2020|LocalArchive=Machines, Materiel and Munitions from the Human-Covenant Conflict, 2525 - Present/M90A}}
The '''M90 Close Assault Weapon System'''<ref>http://www.bungie.net/projects/halo3/content.aspx?link=h3shotgun</ref><ref>[[The Art of Halo]]</ref> (abbreviated '''M90 CAWS'''), is the [[United Nations Space Command]]'s primary shotgun, and is one of the most effective infantry weapons used by front line forces.


==Design Details==
The M90 is most prominently used by the [[UNSC Marine Corps]], with the [[UNSC Army]] instead preferring the [[M45E shotgun]]. However, the [[M45D shotgun]] has largely replaced both in general UNSC service as of the [[Post-Covenant War conflicts|post-Covenant War era]].{{Ref/Reuse|Enc22}}
[[Image:M90Shotgun.png|thumb|left|170px|M90 Mk I schematic.]]
The '''M90 Shotgun''' is a pump-action, magazine-fed, dual tubular non-detachable type weapon. The Weapon System Technologies DTM series shotgun is the most common shotgun employed by [[UNSC Special Forces]], law enforcement agencies, and sportsmen. The M90 has been in service for over 27 years and its design has changed very little. The M90’s immense power, ease of use, and reduced capacity for puncturing the hulls of spacecraft over many other UNSC weapon systems with standard 0000 ammunition are greatly appreciated. The M90 is often employed in urban conditions where the tight spaces are conducive to the shotgun's wide spray for defensive purposes and CQB combat. The military issued DTM series comes standard with an adjustable stock and pistol grip, although there are different models like the WST DTM/LE model which has a solid stock and no pistol grip. The DTM series of shotguns are available in 20-Gauge and 10-Gauge for the civilian market; the 8-gauge is only sold to law enforcement and military agencies.


===Ammunition===
It has numerous nicknames, including '''The Hammer''', '''Deck Clearer''', '''Mop''', '''Broom''', '''Universal Translator''', '''Boomstick''', '''Hick Stick''', '''Thunderer''', '''Betsy''', '''Equalizer''', '''Waster''', and the '''Okay-47'''.{{Ref/Reuse|ENC324}}
{{Main|Soellkraft 8 Gauge Shell}}
The M90 Shotgun uses the [[Soellkraft 8 Gauge Shell|Soellkraft 8 Gauge Magnum Shotgun Shell]]. This is an incredibly large round, not used by any modern military. Recoil has been said to be relatively low.<ref>http://www.bungie.net/projects/halo3/content.aspx?link=h3shotgun</ref> It is assumed that shotgun technology must have advanced enough to suppress the recoil.


===Advantages===
==Overview==
The M90 Shotgun fires 15 spreading pellets per shot. The combined force of each relatively weak pellet does a significant amount of damage against almost any type of infantry, and the shells wide spread in certain situations can inflict shrapnel damage to multiple infantry. The M90 Shotgun's powerful 8 gauge shell can punch through armor and [[Energy Shield]]s easily, making the M90 a great weapon for taking on heavily armored infantry, and lightly armored vehicles. The M90's top loading system allows a user to reload the shotgun with speed and ease for quick firing.
===Design details===
The M90 is a pump-action shotgun, chambered in the extremely powerful 8-gauge magnum shell, and feeding from a 12-round, dual-tubular, non-detachable magazine.{{Ref/Book|Id=CEM|Halo: Combat Evolved manual|Page=18}} The extended magazine is included to aid the weapon's effectiveness in [[Naval boarding|boarding]] actions.{{Ref/Reuse|Enc22}} It is generally utilized alongside MAG 15P-00B rounds,{{Ref/Reuse|HCEG}}{{Ref/Reuse|H2G}}{{Ref/Reuse|H2AG}} and is designed as a more practical and cost-effective recreation of [[Misriah Armory]]’s [[M45E Tactical Shotgun]],{{Ref/Game|Id=HCEAL|HCEA|Library (feature)#Shotgun|Library|Detail=Shotgun}} though in UNSC service it is considered to be functionally identical.{{Ref/Generic|Id=HWDD6|[[Data drops]]|Data Drop #6}}


===Disadvantages===
The magazine of the weapon is prominently positioned above the barrel, with the weapon’s glowing iron sights mounted atop it and the receiver located just behind, facing upwards, roughly in-line with the trigger. The magazine possesses a dull grey or glossy black finish with ribbed indents along its length. A flashlight is integrated into the weapon’s forend, which also features a prominent reddish button.{{Ref/Game|Id=HCEG|HCE|Shotgun in-game model}}{{Ref/Game|Id=H2G|H2|Shotgun in-game model}}{{Ref/Game|Id=H2AG|H2A|Shotgun in-game model}}
While highly effective at close range, the M90 is rendered useless at long range, barely useable at medium range. also it should  be used in conjunction with a medium or long range weapon. The shotgun's pattern is extremely loose, and fans out quickly, thus at farther ranges, only one or two pellets out of the 15 might hit. The M90, being a pump action shotgun, must be cocked after every shot before it can be fired again; the M90 must also be reloaded shell by shell and does not use any type of external magazine. This can make reloading time-consuming when in combat situations, but it is useful to be able to interrupt the reloading and shoot after you load a shell. In open close-quarter situations, the wide spread of the shell can potentially harm friendly infantry if the shotgun is fired at both the enemy and friendly troops.


===Influence===
===Functionality===
The ''mechanical'' design of the M90 shotgun is loosely based on the South African Neostead shotgun which features dual six-round top-loaded magazines. The weapon features two integral tube magazines with a total capacity of thirteen rounds (6+6+1) and ambidextrous bottom ejecting shells. It is chambered for standard 12-Gauge 2.75-inch cartridges. The ''aesthetic'' design is a composite of multiple pump-action designs, most notably, the Mossberg 500.
[[File:H2A Multiplayer M90 Firing.jpg|250px|thumb|A [[Spartan]] firing an M90.]]
The M90 shotgun is hefted like a rifle, with the user's dominant hand holding the primary pistol grip, and their off-hand supporting the weapon by holding onto the forend (the portion of the weapon which is acted upon by the user to facilitate the pump action, which also acts as a forward grip for the off-hand). As is typical of human firearms, in order to discharge the weapon, the trigger positioned at the top of the pistol grip must be depressed. If the weapon is loaded with standard ammunition, the weapon's firing will take the form of a spray of pellets, referred to as "buckshot", which are quite powerful at close range but lose damage efficiency as the spray disperses and loses energy. The firing of the weapon produces a fiery muzzle flash as burning propellant gasses leave the barrel.{{Ref/Reuse|HCEG}}{{Ref/Reuse|H2G}}{{Ref/Reuse|H2AG}}


==Tactics==
Once the chambered round is fired, to repeat, the forend of the weapon is slid back across the weapon's underside in the direction of the stock, retracting the bolt and removing the spent shell from the firing chamber. When the forend is fully retracted, the spent shell will have been ejected, and the way will have been cleared for the elevator component to position a new round for the bolt to carry into the chamber when the slide is once again pushed forward in the direction of the muzzle. Once the weapon’s magazine is expended, new rounds must be inserted one at a time into the receiver to continue firing. It is possible at any time to top up the magazine with additional ammunition until it is full.{{Ref/Reuse|HCEG}}{{Ref/Reuse|H2G}}{{Ref/Reuse|H2AG}}
===Campaign===
*One of the most dominating weapons in the Halo Trilogy, the Shotgun shows its most effective side in [[The Library (Level)|The Library]] in ''Halo: Combat Evolved'' and in ''[[Sacred Icon (Level)|Sacred Icon]]'' in ''Halo 2''.
*This weapon is easily the best choice in the game for taking out powerful enemies such as groups of [[Flood Combat Forms]], [[Elites]], and [[Brutes]]. Even on ''Halo: Combat Evolved'' [[Heroic]] difficulty, it is possible to take out shielded Elites with as few as two shells, and only on [[Legendary]] do the Flood become capable of surviving a direct hit from the shotgun.
*In ''Halo 2'', Brutes, [[Councilor]]s and [[Ultra Elites]] are the only ones that can survive a point blank shotgun blast on Normal difficulty. Hunters can be killed by shooting directly into the exposed orange [[Lekgolo]]. However, on Legendary difficulty, any rank higher than a [[Minor Elite]]'s shielding and health can withstand a point blank shotgun blast. Beware, for the [[Flood]] can wield shotguns to devastating effect, since they have an extremely long jumping range. In ''Halo 2'' Brutes also wield shotguns.
*Despite its huge firepower, it will take around 2-3 shots to kill a [[Brute Minor]] or [[Brute Captain]].
*In Halo 2, shotguns are largely ineffective against Brutes on any difficulty.


===Multiplayer===
===Performance===
*The shotgun's effectiveness in multiplayer games varies depending on the terrain; indoors and in tight spaces, the shotgun is unbeatable, and some consider it superior to the Energy Sword, possibly because there is a slight delay between pressing the trigger and the slash of the sword, while the Shotgun is instantaneous. Most players can utilize this fact to earn a Bulltrue medal relatively easily, though caution should be exercised, as the timing is very difficult to master.
The M90 is a devastating weapon in close, confined environments, with a loud report and strong recoil.{{Ref/Book|Id=H2M|Halo 2 manual|Page=11}} The spray of pellets from the weapon mean that at slightly longer ranges, it can be used to hit clusters of targets simultaneously,{{Ref/Reuse|CEM}} but also makes the weapon inefficient at extended ranges due to the low ratio of shot which hits the target to the amount of shot fired.{{Ref/Reuse|H2M}} The M90's powerful cartridge makes it capable of efficiently engaging and defeating enemies with [[energy shielding]] within effective range.{{Ref/Reuse|SS25}} The Covenant learned to be wary of this weapon in urban environments, noting its close-range lethality.{{Ref/Book|Halo 2 Limited Collector's Edition Manual|Page=}}
*You have about one shot to kill your opponent after you ambush them. If you shoot and don't succeed to kill them, your opponent has a chance of recovering and killing you, most likely taking your prized weapon away from you.
*Many players carry the shotgun and a weapon that is very effective at medium and above ranges such as the Sniper Rifle, [[Beam rifle|Beam Rifle]] , [[Covenant Carbine]], [[M6D Personal Defense Weapon System|M6D Pistol]], or [[BR55 Battle Rifle]], thus making for a more flexible arsenal.
*Continuous firing by using the magazine and loading one shell then firing does not affect the rate of fire significantly, prompting a few players to employ a tactic dubbed "shotgun sniping" as suppressive fire across medium-sized maps.
*The Shotgun can finish enemies off safely and quickly by shooting them at a decently close range, then striking them with a melee attack immediately afterward, guaranteeing an instant kill.
*When you have a shotgun, it is advisable to watch your team's sniper. That way you can defeat anybody that attempts to flank the sniper. It is easy to do this on The Pit.
*It is best to carry a Battle Rifle with you, or some other medium to long range weapon. If not, have a teammate with you who will have one. On the maps [[Snowbound (Level)|Snowbound]] and [[Epitaph (Level)|Epitaph]], many people prefer to wait by shield doors, preparing to ambush and instantly kill those who come through. If you're charging at at enemy while firing your Assault Rifle hoping to finish him off with a melee attack, and the enemy is charging at you but not firing, chances are he has a shotgun and plans to surprise you with it when you get within killing range.


==M90 Models==
==Operational history==
Not much has changed in the shotgun's design since its conception. The weapon's power lies in the great stopping power of its quad-ought (or 0000) ammunition load, which, is extremely powerful in close-quarters combat.
The M90 was a common close-range battle implement in the service of the UNSC throughout the [[Human-Covenant War]]. It saw service in the hands of [[John-117]] during [[Operation: SILENT STORM]],{{Ref/Reuse|SS25}} but its most prominent usage came in 2552. It played a notable part in the [[Battle of Installation 04]], being used by [[UNSC Marine Corps|UNSC Marines]] against the [[Covenant]] and [[Flood]].{{Ref/Reuse|HCEG}} An M90 was also present during the ensuing [[Skirmish over Threshold]].{{Ref/Reuse|FS6}} It went on to be widely utilized during the [[Battle of Earth]].{{Ref/Reuse|H2G}} Notably, the [[Unidentified Master Gunnery Sergeant|Master Gunnery Sergeant]] who oversaw John-117's issuing with his new [[MJOLNIR Mark VI armor]] was killed on [[Cairo Station (station)|Cairo Station]] while using an M90 to defend his armory from a pair of [[Sangheili]].{{Ref/Level|H2|Cairo Station}} M90s were brought on the ''[[UNSC In Amber Clad]]'', and thus were employed throughout the [[Battle of Installation 05]].{{Ref/Reuse|H2G}} During the battle, many Marines wielded M90s during their [[Battle of the Quarantine Zone|incursion]] into the [[quarantine zone]]. Following the accidental release of the [[Flood]] by [[Thel 'Vadam|Thel 'Vadamee]], many of these Marines fell victim to the parasite, with their M90s remaining in the possession of the resultant [[Flood combat form|combat forms]].{{Ref/Level|H2|Sacred Icon}}{{Ref/Level|H2|Quarantine Zone}} Towards the end of the Battle of Installation 05, during the opening stages of the [[Great Schism]], many M90s were captured by [[Jiralhanae]] forces, who employed them against both [[Covenant separatists|separatist]] Sangheili on the ring's surface,{{Ref/Level|H2|Uprising}}{{Ref/Level|H2|The Great Journey}} and Flood during their [[Fall of High Charity|invasion]] of [[High Charity]].{{Ref/Level|H2|High Charity (level)|High Charity}}


===M90 Mk I===
==In-game information==
Introduced in ''[[Halo: Combat Evolved]]'' and is arguably the strongest version. The M90 Mk I can hold 12 shells, and the player can carry up to 60 more shells for a total of 72 shells. It has the longest and most realistic effective range of all the three models, and its fifteen tungsten pellets could kill, weaken or injure targets at short to medium ranges. Although it is more likely to kill a closer ranged enemy as the shotgun is weak on further distanced enemies, the shotgun could also kill nearly any infantry target at point blank range. It even has the capabilities to take on lightly armored vehicles, such as the [[Ghost]] effectively. Players could hold the trigger button down for continuous fire. To melee, the player swings the Shotgun up and brings the butt of the weapon on someone's head/front. If the player fires the entire magazine or if the player picks up a Shotgun without a full magazine and fires it empty, the character model will rack the shotguns pump after reloading, although most players usually opted to reload after every shot. This version of the M90 shotgun had a quicker reload than the Mk. II model.
===Visual depictions===
 
[[File:HCE-M90Shotgun.png|350px|thumb|The depiction of the M90 from ''Halo: Combat Evolved''.]]
===M90 Mk II===
The original ''[[Halo: Combat Evolved]]'' depiction is different in three notable aspects from the later depictions in ''[[Halo 2]]'' and ''[[Halo 2: Anniversary]]''. The first is that the weapon features a smooth magazine lacking a heatshield, with a distinctive chrome finish. The second is that the luminous iron sights glow blue instead of green. The final differentiation is that in ''Halo: Combat Evolved'', but not successive depictions, when the weapon is reloaded after being completely emptied, the weapon’s action is worked to chamber the first round, which is considerably more realistic.{{Ref/Reuse|HCEG}} A similar shotgun design, the [[M90A shotgun]], is featured in ''[[Halo 3]]'' and ''[[Halo 3: ODST]]''.
The second model, the '''M90 Mk II''', used in ''[[Halo 2]]'' changed significantly from the Mk I. The only difference in appearance, with this model is the green [[Iron Sights]] instead of blue and the stock's shape. The melee is much faster than the Mk I's, swinging the Shotgun horizontally instead. Its performance is also drastically different as it can not kill targets at more than a few feet away, though a quick shoot-[[melee]] combo would usually kill an enemy very quickly. The player can only carry 36 spare shells for a total of 48 shells. Unlike the previous version, it has almost no stopping power when used against vehicles, and like before, with the range decrease, its effectiveness against the Flood was reduced slightly. It probably took this change as [[Bungie]] introduced the [[Energy Sword]] as a usable weapon, and wanted to "even the odds". The weapon's action does not cycle after reloading, unlike the previous iteration of the M90.
 
===M90A===
The third model, the '''M90A''', is used in ''[[Halo 3]]'' and ''[[Halo 3: ODST]]''. There are a variety of graphical and gameplay changes from the previous models. The blue iron-sights have been reintroduced, it has a longer barrel and the [[flashlight]] is now mounted on the side. Unlike the older models which had a 12 shell magazine, the M90A only has a 6 shell magazine. The player can carry 30 spare shells for a total of 36 shells. To make up for this, its effective range is far greater than the M90 Mk II, as it can kill targets at two or even three times the range, depending on their health. The rack is always pumped after reloading, despite the fact that this would eject a shell if any were already loaded. Like the M90 Mk I, the M90A is once again a powerful Flood weapon because of its increase in range and power, though the M90A may still require a player to shoot and melee a Flood target, depending on the type.
 
==UNSC Remarks==
*“The kick is milder with the As—not that it was that bad to begin with—sometimes progress just seems like change, if you catch my meaning.”
*“The adjustable stock on the M90 works just fine, but I’ve got a soft spot in my heart for the [[DTM/Law Enforcement|DTM/LE]] model—old habits die hard, I guess."
*“Actually, I think the jury is still out on whether it means ‘STFU and STFD’ or ‘you ain’t gonna make it.”
*“The action I saw against the Flood on [[Delta Halo]] was pretty limited—thankfully—and you would think that the M90 would be the ultimate anti-Flood weapon, right? Except that a shotgun is effective because it delivers a massive shock to a delicately balanced system of organs and the Flood don’t have that delicately balanced system of organs —it’s like shooting a mike foxtrot tree! All you can really hope to do is disassemble them as rapidly as possible in the correct order.”
*“The shotgun is a specialist weapon—it has its uses, but they are limited. Maybe it is more accurate to call it a tool, as opposed to a weapon?”


==Trivia==
==Trivia==
*The M90 has a wide variety of slang associated with it, this includes: ''waste 'em'', ''deck clearer'', and ''universal translator''.<ref>Sybex Halo PC Strategy Guide Page 19</ref>
{{Linkbox|gameplay=yes|gallery=yes}}
*In ''Halo: Combat Evolved'' and ''Halo 2'', it is said to be a magazine fed weapon, which has caused much speculation as to whether there was a typo. This confusion is a common misconception, however, since Shotguns have an internal, non-detachable magazine which is different than the common assault weapon or sidearms magazine.
*In ''Halo: Combat Evolved'', the M90 shotgun shares its [[:File:Halo-SniperRifle-Reticule.png|reticule]] with the then-PC-exclusive [[M7057 flamethrower|flamethrower]].
*In ''Halo 3'' Matchmaking there is a gametype called [[Shotty Snipers]], where one starts with a Shotgun and a [[Sniper Rifle]]. This gametype is often verbally abused as many players use the Shotgun instead of the Sniper most of the time. There is also another gametype called "[[ShWATguns]]" in Matchmaking where one starts with only a Shotgun and has no shields.
*In the second issue of ''[[Halo: Fall of Reach - Boot Camp]]'', the [[Unidentified captain (UNSC Dartmouth)|captain]] of the {{UNSCShip|Dartmouth}} retrieves several shotguns from a [[cryo chamber]]. In the first two panels, the shotguns appear to be [[M45 Tactical Shotgun|M45s]], though they resemble M90s in subsequent panels.
*In [[Halo: The Flood]], it is stated that the M90 fires a twelve gauge shell, whereas in the Halo game manuals it states that the M90 fires an eight gauge shell.
*In ''[[Halo 2: Anniversary]]'', if the player uses [[active camouflage]] while the M90 is equipped, the shells will be the only objects still visible. This could be because the shells are technically not attached to the shotgun (like the magazines in other weapons) but rather held inside the weapon until ignited and fired. This is best seen when playing as [[Thel 'Vadam|the Arbiter]].
*You can make the shotgun reload itself in Halo: Combat Evolved, by firing 2 shots, then press fire, reload and swap it for a another weapon all at the same time. The shotgun will pump itself on the floor and will have reloaded itself.
*In ''[[Halo: Combat Evolved]]'', the shotgun is the most effective weapon in the game against most [[Flood]] forms. A single shot is capable of killing [[Flood combat form]]s and [[Flood carrier form]]s and works best when paired with a weapon with a high-rate of fire such as an [[MA5B assault rifle]] to deal with [[Pod infector]]s. The shotgun is still effective in later games, but not to such a degree as, starting in ''[[Halo 2]]'', infection forms can revive deceased combat forms unless the body is destroyed. ''Halo: Combat Evolved'' lacked this resuscitation ability for the Flood.
*In [[Combat Evolved]], you can perform what players call the "speed pump". In this method, the player must reload the shotgun almost instantly after firing each shot. After each time he/she repeats this procedure, the shotgun will be reloaded faster than the normal rate. As a result, the shotgun will inflict a seemingly unstoppable barrage of projectiles until there are no longer any shells left to spare. This method is extremely useful in the level, [[The Library (Level)|The Library]], as well as the remainder of the levels after it.
*Miranda Keyes is the only known human to dual-wield a shotgun with another weapon. However, she did not fire it.
*The M90 can also be called the "boomstick (a common name for shotguns), The Hammer, Deck Cleaner, Mop, Broom, Universal Translator, High Stick, Thunderer, Betsy, Equalizer, The Okey-47 (a reference to the [[wikipedia:AK-47|AK47]]), and many, many others" according to the [[Halo Encyclopedia]].
*In the [[Halo Legends]] episode [[The Package]], [[Kelly-087]] is seen firing the M90 in semi-automatic. This suggests that the shotgun is a selective-fire weapon, or probably just overlooked, like many other things in The Package.
*The shotgun has unrealistically short range. Modern 12 gauge shotguns usually have a range of 50 meters, the M90, being 8 gauge would have a ''much'' farther range, yet is limited to only 20 meters or less. However, this may be due to gameplay balances.


==Gallery==
==Gallery==
<gallery>
<gallery>
Image:M90 Shotgun.jpg|The M90 Mk I, the model used in ''Halo: CE''.
File:HCE_M90Shotgun_Icon.png|''Halo: Combat Evolved'' M90 icon.
Image:M90 Mk II Shotgun.jpg|The M90 Mk II, the model used in ''Halo 2''.
File:M90 Shotgun.png|The M90 as it appears in ''[[Halo: Combat Evolved]]''.
Image:H3 Shotgun.jpg|The M90A, the model  used in ''Halo 3''.
File:Shotgun-render.png|The shotgun in the hands of [[John-117]] in ''Halo: Combat Evolved''.
Image:The_round.jpg|The shell is being discarded from the shotgun. Note the hippo and the 8 GAUGE MAG written on its side.
File:HCE 343 Guilty Spark Marine holding a M90.jpg|A Marine using an M90.
Image:Gallery 22202.jpg|A white Spartan wielding a Shotgun in ''Halo 3''.
File:Floodambush.jpg|First-person view of the M90 in ''Halo: Combat Evolved''.
Image:1211479389 Shotty Discharge.jpg|A close-up of the M90 discharging a shell.
File:Halo2-M90-Shotgun.png|Profile view of the M90 Shotgun in ''[[Halo 2]]''. As in the previous game, the weapon lacks a trigger.
Image:01mc.jpg|Master Chief holding the M90.
File:Halo2-MasterChiefShotgun.png|John-117 holding an M90.
Image:343GS-Marine Run.jpg|A Marine using the M90 Mk I on Halo.
File:HaloWars-Forge-Shotgun.jpg|Sergeant John Forge wielding an M90 shotgun in ''[[Halo Wars]]''.
File:Homecoming Shotgun Concept.png|The shotgun as it appears in ''[[Halo Legends]]: [[Homecoming]]''.
File:H2A M90 Concept.jpg|''[[Halo 2: Anniversary]]'' concept art of the M90.
File:H2ACP-M90HUD.png|First-person view of the M90 in ''Halo 2: Anniversary''.
File:H2A Brute Minor.png|A [[Jiralhanae]] [[Jiralhanae Minor|Minor]] holding an M90 shotgun in ''Halo 2: Anniversary''.  
File:GamescomH2AShotguns.jpg|Two Spartans using M90 shotguns in ''Halo 2: Anniversary'' multiplayer.
File:H2AMP-M90HUD.png|First-person view of the M90 on Stonetown.
File:H2AMP-M90.png|The M90 being used by a Spartan on Stonetown.
</gallery>
</gallery>
==List of appearances==
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo Graphic Novel]]''
**''[[Breaking Quarantine]]''
*''[[Halo Wars]]''
*''[[Halo Legends]]''
**''[[Homecoming]]''
**''[[Origins]]''
**''[[The Package (animated short)|The Package]]''
*''[[Halo: Blood Line]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
*''[[Halo 2: Anniversary]]''
*''[[Know Your Enemy]]''
*''[[Halo Mythos]]''
*''[[Halo Wars 2]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Silent Storm]]''
*''[[Halo: Outcasts]]''


==Sources==
==Sources==
<references/>
{{Ref/Sources}}


{{UNSC Infantry Weapons}}
{{UNSC support weapons}}
<gallery>[[Category:Held Weapons]]</gallery>
[[Category:Shotguns]]
<gallery>[[Category:Human Weapons]]</gallery>
<gallery>[[Category:UNSC]]</gallery>
<gallery>[[Category:Weapons]]</gallery>
<gallery>[[Category:Halo 3]]</gallery>
<gallery>[[Category:Halo 2]]</gallery>
[[Category:Weapons]]
[[Category:UNSC Weapons]]

Latest revision as of 14:58, November 1, 2024

This article is about the shotgun featured in Halo: Combat Evolved and Halo 2. For the shotgun featured in Halo 3 and ODST, see M90A shotgun.
M90 Close Assault Weapon System
H2A M90Shotgun.png
Production overview

Manufacturer:

Weapon System Technology[1][2]

Model series:

DTM series[1]

Type:

Pump-action shotgun[3][4]

Variants:

M90A shotgun

Specifications

Length:

118 centimeters (46.5 in)[2]

Ammunition type:

M296 8-Gauge Magnum[2]

Feed system:

12-shell dual-tubular non-detachable magazine[3][2]

Operation:

Pump-action[3][4]

Service history

In service:

 

The M90 Close Assault Weapon System (CAWS),[5] also known as the M90 Close Assault Shotgun,[6] M90 assault shotgun, or simply the M90,[7] is a pump-action shotgun in service with UNSC.[5] It is a military variant of the prolific DTM series of shotguns from Weapon System Technology.[1]

The M90 is most prominently used by the UNSC Marine Corps, with the UNSC Army instead preferring the M45E shotgun. However, the M45D shotgun has largely replaced both in general UNSC service as of the post-Covenant War era.[2]

It has numerous nicknames, including The Hammer, Deck Clearer, Mop, Broom, Universal Translator, Boomstick, Hick Stick, Thunderer, Betsy, Equalizer, Waster, and the Okay-47.[5]

Overview[edit]

Design details[edit]

The M90 is a pump-action shotgun, chambered in the extremely powerful 8-gauge magnum shell, and feeding from a 12-round, dual-tubular, non-detachable magazine.[3] The extended magazine is included to aid the weapon's effectiveness in boarding actions.[2] It is generally utilized alongside MAG 15P-00B rounds,[8][9][10] and is designed as a more practical and cost-effective recreation of Misriah Armory’s M45E Tactical Shotgun,[11] though in UNSC service it is considered to be functionally identical.[12]

The magazine of the weapon is prominently positioned above the barrel, with the weapon’s glowing iron sights mounted atop it and the receiver located just behind, facing upwards, roughly in-line with the trigger. The magazine possesses a dull grey or glossy black finish with ribbed indents along its length. A flashlight is integrated into the weapon’s forend, which also features a prominent reddish button.[8][9][10]

Functionality[edit]

A Spartan firing an M90 shotgun in H2A multiplayer.
A Spartan firing an M90.

The M90 shotgun is hefted like a rifle, with the user's dominant hand holding the primary pistol grip, and their off-hand supporting the weapon by holding onto the forend (the portion of the weapon which is acted upon by the user to facilitate the pump action, which also acts as a forward grip for the off-hand). As is typical of human firearms, in order to discharge the weapon, the trigger positioned at the top of the pistol grip must be depressed. If the weapon is loaded with standard ammunition, the weapon's firing will take the form of a spray of pellets, referred to as "buckshot", which are quite powerful at close range but lose damage efficiency as the spray disperses and loses energy. The firing of the weapon produces a fiery muzzle flash as burning propellant gasses leave the barrel.[8][9][10]

Once the chambered round is fired, to repeat, the forend of the weapon is slid back across the weapon's underside in the direction of the stock, retracting the bolt and removing the spent shell from the firing chamber. When the forend is fully retracted, the spent shell will have been ejected, and the way will have been cleared for the elevator component to position a new round for the bolt to carry into the chamber when the slide is once again pushed forward in the direction of the muzzle. Once the weapon’s magazine is expended, new rounds must be inserted one at a time into the receiver to continue firing. It is possible at any time to top up the magazine with additional ammunition until it is full.[8][9][10]

Performance[edit]

The M90 is a devastating weapon in close, confined environments, with a loud report and strong recoil.[4] The spray of pellets from the weapon mean that at slightly longer ranges, it can be used to hit clusters of targets simultaneously,[3] but also makes the weapon inefficient at extended ranges due to the low ratio of shot which hits the target to the amount of shot fired.[4] The M90's powerful cartridge makes it capable of efficiently engaging and defeating enemies with energy shielding within effective range.[7] The Covenant learned to be wary of this weapon in urban environments, noting its close-range lethality.[13]

Operational history[edit]

The M90 was a common close-range battle implement in the service of the UNSC throughout the Human-Covenant War. It saw service in the hands of John-117 during Operation: SILENT STORM,[7] but its most prominent usage came in 2552. It played a notable part in the Battle of Installation 04, being used by UNSC Marines against the Covenant and Flood.[8] An M90 was also present during the ensuing Skirmish over Threshold.[6] It went on to be widely utilized during the Battle of Earth.[9] Notably, the Master Gunnery Sergeant who oversaw John-117's issuing with his new MJOLNIR Mark VI armor was killed on Cairo Station while using an M90 to defend his armory from a pair of Sangheili.[14] M90s were brought on the UNSC In Amber Clad, and thus were employed throughout the Battle of Installation 05.[9] During the battle, many Marines wielded M90s during their incursion into the quarantine zone. Following the accidental release of the Flood by Thel 'Vadamee, many of these Marines fell victim to the parasite, with their M90s remaining in the possession of the resultant combat forms.[15][16] Towards the end of the Battle of Installation 05, during the opening stages of the Great Schism, many M90s were captured by Jiralhanae forces, who employed them against both separatist Sangheili on the ring's surface,[17][18] and Flood during their invasion of High Charity.[19]

In-game information[edit]

Visual depictions[edit]

The depiction of the M90 from Halo: Combat Evolved.

The original Halo: Combat Evolved depiction is different in three notable aspects from the later depictions in Halo 2 and Halo 2: Anniversary. The first is that the weapon features a smooth magazine lacking a heatshield, with a distinctive chrome finish. The second is that the luminous iron sights glow blue instead of green. The final differentiation is that in Halo: Combat Evolved, but not successive depictions, when the weapon is reloaded after being completely emptied, the weapon’s action is worked to chamber the first round, which is considerably more realistic.[8] A similar shotgun design, the M90A shotgun, is featured in Halo 3 and Halo 3: ODST.

Trivia[edit]

Main-Legendary.png See our gameplay information related to M90 shotgun on its gameplay page.
Main-Superintendent.png Browse more images in this article's gallery page.
  • In Halo: Combat Evolved, the M90 shotgun shares its reticule with the then-PC-exclusive flamethrower.
  • In the second issue of Halo: Fall of Reach - Boot Camp, the captain of the UNSC Dartmouth retrieves several shotguns from a cryo chamber. In the first two panels, the shotguns appear to be M45s, though they resemble M90s in subsequent panels.
  • In Halo 2: Anniversary, if the player uses active camouflage while the M90 is equipped, the shells will be the only objects still visible. This could be because the shells are technically not attached to the shotgun (like the magazines in other weapons) but rather held inside the weapon until ignited and fired. This is best seen when playing as the Arbiter.
  • In Halo: Combat Evolved, the shotgun is the most effective weapon in the game against most Flood forms. A single shot is capable of killing Flood combat forms and Flood carrier forms and works best when paired with a weapon with a high-rate of fire such as an MA5B assault rifle to deal with Pod infectors. The shotgun is still effective in later games, but not to such a degree as, starting in Halo 2, infection forms can revive deceased combat forms unless the body is destroyed. Halo: Combat Evolved lacked this resuscitation ability for the Flood.

Gallery[edit]

  • Halo: Combat Evolved M90 icon.

    Halo: Combat Evolved M90 icon.

  • The M90 as it appears in Halo: Combat Evolved.

    The M90 as it appears in Halo: Combat Evolved.

  • The shotgun in the hands of John-117 in Halo: Combat Evolved.

    The shotgun in the hands of John-117 in Halo: Combat Evolved.

  • A Marine using an M90.

    A Marine using an M90.

  • First-person view of the M90 in Halo: Combat Evolved.

    First-person view of the M90 in Halo: Combat Evolved.

  • Profile view of the M90 Shotgun in Halo 2. As in the previous game, the weapon lacks a trigger.

    Profile view of the M90 Shotgun in Halo 2. As in the previous game, the weapon lacks a trigger.

  • John-117 holding an M90.

    John-117 holding an M90.

  • Sergeant John Forge wielding an M90 shotgun in Halo Wars.

    Sergeant John Forge wielding an M90 shotgun in Halo Wars.

  • The shotgun as it appears in Halo Legends: Homecoming.

    The shotgun as it appears in Halo Legends: Homecoming.

  • Halo 2: Anniversary concept art of the M90.

    Halo 2: Anniversary concept art of the M90.

  • First-person view of the M90 in Halo 2: Anniversary.

    First-person view of the M90 in Halo 2: Anniversary.

  • A Jiralhanae Minor holding an M90 shotgun in Halo 2: Anniversary.

    A Jiralhanae Minor holding an M90 shotgun in Halo 2: Anniversary.

  • Two Spartans using M90 shotguns in Halo 2: Anniversary multiplayer.

    Two Spartans using M90 shotguns in Halo 2: Anniversary multiplayer.

  • First-person view of the M90 on Stonetown.

    First-person view of the M90 on Stonetown.

  • The M90 being used by a Spartan on Stonetown.

    The M90 being used by a Spartan on Stonetown.

List of appearances[edit]

Sources[edit]

  1. ^ a b c Bungie.net, The M90A Shotgun (Retrieved on Jun 8, 2020) [local archive] [external archive]
  2. ^ a b c d e f Halo Encyclopedia (2022 edition), page 173
  3. ^ a b c d e Halo: Combat Evolved manual, page 18
  4. ^ a b c d Halo 2 manual, page 11
  5. ^ a b c Halo Encyclopedia (2011 edition), page 324
  6. ^ a b Halo: First Strike, chapter 6
  7. ^ a b c Halo: Silent Storm, chapter 25
  8. ^ a b c d e f Halo: Combat Evolved, Shotgun in-game model
  9. ^ a b c d e f Halo 2, Shotgun in-game model
  10. ^ a b c d Halo 2: Anniversary, Shotgun in-game model
  11. ^ Halo: Combat Evolved Anniversary, Library: Shotgun
  12. ^ Data drops, Data Drop #6
  13. ^ Halo 2 Limited Collector's Edition Manual
  14. ^ Halo 2, campaign level Cairo Station
  15. ^ Halo 2, campaign level Sacred Icon
  16. ^ Halo 2, campaign level Quarantine Zone
  17. ^ Halo 2, campaign level Uprising
  18. ^ Halo 2, campaign level The Great Journey
  19. ^ Halo 2, campaign level High Charity

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List of infantry support weapons in UNSC service
Anti-vehicle weapons
Guided munitions launchers
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