M45 shotgun

The M45 Tactical Shotgun (formally Tactical Shotgun, 8 Gauge, Pump Action, M45) is a shotgun manufactured by Misriah Armory. The M45 is commonly used by the United Nations Space Command alongside the M90 Close Assault Weapon System, a functionally identical copy designed by Weapon System Technologies.

Overview

A blueprint of the M45 Tactical Shotgun.

The M45 is used during most close-combat scenarios (particularly in urban areas with heavy enemy occupation), as well as in boarding actions. It was used in numerous military operations in urban terrain (MOUT) situations during the Insurrection and was met with widespread acclaim by its users. The M45 later saw widespread use during the Human-Covenant War.

Design details

The M45 shotgun features a dual tubular, non-detachable magazine and is chambered for 8 gauge ammunition. The base model and the M45D may be fed up to six shells whereas the E variant accepts twelve. It is a special-purpose weapon used in any situation where the range of engagement is limited and when over-penetration is not desirable, but maximum stopping power is required. Some variants of the M45 shotgun feature a smart-linked controllable choke.

Variants

M45D Tactical Shotgun

The differences between the M45 and the M45D are mostly cosmetic, as the M45D retains the standard six-round internal magazine and firing mechanism. The M45D is unexpectedly comfortable to fire and simple to control, despite the shotgun's powerful 8 gauge cartridge and light weight. This is due to the M45D's magnetorheological recoil dampening system, which is considered very under-appreciated. The M45D shotgun does not feature a smart-linked controllable choke, unlike some M45 variants.

M45E Tactical Shotgun

The M45E boasts greater stopping power than the standard M45 and has a twelve-round internal magazine rather than the standard model's six-round magazine. It features blue iron sights instead of the red sights common to the original model, though it is otherwise superficially identical.

Smart-scope model

Unlike past iterations of the M45, the smart-scope capable model is a dual-mode shotgun, capable of semi-automatic or pump-action operation. It also features a Projection sight.

Smart-scope variants

There are also several variants of this specific model:

• Lawgiver: This variant has increased stopping power, rate of fire, and accuracy compared to the standard smart-scope model.
• Blaze of Glory: This variant has the Kinetic bolts attachment equipped in order to fire hard-light projectiles with more range and added anti-materiél effect than the Lawgiver. Its entire magazine can also be reloaded with one shell. In addition, its sound effect is the same as that of a smart-scoped LightRifle when fired in first person, and that of a hipfired LightRifle when fired in third person. The Blaze of Glory can also be found as a hidden weapon in the mission Blue Team.
• Oathsworn: Oathsworn is a series of custom M45 shotguns created by Spartan-II Kelly-087.

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  M45D.

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  M45E.

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  Smart-scope model.

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  Smart-scope Lawgiver.

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  Smart-scope Blaze of Glory.

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  Smart-scope Oathsworn.

Derivatives

DTM Series

Main article: DTM series

Due to the M45's popularity among UNSC service members during the Insurrection, Weapon System Technologies opted to design a more affordable and more practical copy of the M45. The resulting M90 Close Assault Weapon System is part of the DTM series, which is marketed to the military, law enforcement, and civilians. The standard model of the M90 Close Assault Weapon System is functionally identical to the M45E, possessing a twelve-shell internal magazine, as well as matching the original in range, shot spread, and stopping power. The M90A is based on the original M45 Tactical Shotgun and performs almost identically, despite its longer barrel; it too features a six-round internal magazine. Although the M90 has since dominated both the military and private sector, it is common for UNSC personnel (particularly Marines) to use both weapons concurrently.

Gameplay

Halo: Reach

The M45 shotgun is more powerful than the M90A from Halo 3 and Halo 3: ODST. The pellets have a tighter grouping and the range is superior as well, which also makes it harder to hit multiple enemies at close range. Although this change is hardly noticeable, impact force can be noticed as damage is higher.

The shotgun is very powerful in small confined maps. It should be used as a "corridor sweeper" because of its extreme damage at close range. The Halo: Reach version also has more recoil than its Halo 3 counterpart.

Halo: Combat Evolved Anniversary

In Halo: Combat Evolved Anniversary, the M45E is used in lieu of the M90 CAWS featured in the original game. As the changes between the original weapon and its replacement are superficial, the weapon performs identically to the M90 in Halo: Combat Evolved. The weapon model uses the M45 Tactical Shotgun seen in the Halo: Reach Beta.

Halo 4

The M45D Shotgun, according to 343 Industries employee Chris King, has "a lot longer range now, less damage falloff, and is quite a bit more powerful than say the Reach version overall." In terms of relative firepower, the shotgun is a one-shot kill weapon and should be used for close encounters. It is notable for penetrating enemy shields, particularly Elites, and it takes only two shots to kill a Promethean Knight.

Halo 5: Guardians

The M45 operates similarly to its Halo 4 counterpart, with a few additions; like all weapons in Halo 5: Guardians, it can be smart scoped to increase its accuracy (in this case, tightening its pellet spread with a trade off of increased recoil), its base range is increased, its magazine has been reduced to 5 rounds instead of 6, and its tactical flashlight (previously just an aesthetic part of the weapon's design) is continuously on. The shotgun still features the problem of pellet inconsistency, though, making it ineffective for engagements past 10 meters (33 ft), where the similar but non-hitscan Scattershot may be a better choice. The M45 is the preferred weapon of Kelly-087.

Halo: Spartan Assault and Halo: Spartan Strike

The M45D Shotgun has an extremely short range though significant spread; however, it inflicts massive damage at point-blank range, enough to kill an Elite Major in one shot. The weapon's ammo is capped at 30. Due to its extremely short range, it is not recommended to fight Brute Chieftains with this weapon.

Trivia

	See our gameplay information related to M45 shotgun on its gameplay page.
	Browse more images in this article's gallery page.

• In the Halo: Reach Multiplayer Beta, the shotgun had cyan lights similar to those on the M90. The sights are red in the final game.
• In Halo: Reach, the M45 is pumped at the end of every Spartan reload animation, whereas Sangheili cycle the action upon drawing the weapon. In reality, doing this with a loaded chamber would eject an unused shell.
• In the Halo: Reach strategy guide, the silhouette used to mark shotgun spawns points on multiplayer maps appears to be missing their stocks. However, the M45 does not feature a collapsible stock and does not appear in the final version of the game.
• 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 appear to be M90s in subsequent panels.

Gallery

• Ih shotgun01b.jpg

  Concept art of the M45 Tactical Shotgun for Halo: Reach.

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  Profile of the M45 TS.

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  An angled view of the M45 Tactical Shotgun from the Halo: Reach Beta.

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  A side-view of a Mark V(B)-clad Spartan-III wielding the M45 Tactical Shotgun in the Halo: Reach Multiplayer Beta.

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  M45 in Halo: Reach.

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  A right side view of the M45 Tactical Shotgun from Halo: Reach.

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  A close-up of a Grenadier-clad Spartan-III firing the M45.

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  A UNSC Army soldier using the M45 Tactical Shotgun.

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  The M45's iron sights.

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  A first-person view of a player armed with the M45 Tactical Shotgun.

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  The M45E shotgun in Halo: Combat Evolved Anniversary.

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  A first-person view of the M45E Tactical Shotgun in Halo: Combat Evolved Anniversary.

• H4-Concept-M45DTacticalShotgun.jpg

  Concept art of the M45D Tactical Shotgun in Halo 4.

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  HUD icon of the M45D in Halo 4.

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  The M45D Tactical Shotgun in action in Halo 4.

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  A Recruit-clad Spartan-IV firing the M45D.

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  A HAZOP-clad Spartan-IV wielding the M45D on Complex.

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  The M45 in the Halo 5: Guardians Multiplayer Beta.

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  First-person view of the M45 by Fred-104 in the Halo 5: Guardians campaign.

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  First-person view of the M45 in Halo 5: Guardians.

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  Smart scope with the M45 in Halo 5: Guardians.

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  Concept art of the Smart Scope for the shotgun in Halo 5: Guardians.

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  Third-person view of the M45 engaged in smart scope.

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  Edward Buck firing an M45 during the Battle of Kamchatka.

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  A Freebooter-clad Spartan-IV using an M45 on Pegasus.

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  A Promethean Soldier with an M45 on Raid on Apex 7.

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  First-person view of Lawgiver.

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  An Indomitable-clad Spartan-IV wielding Lawgiver.

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  Smart-scope Blaze of Glory development image.

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  First-person view of Blaze of Glory by Fred-104 in the Halo 5: Guardians campaign.

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  First-person view of Blaze of Glory.

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  A Spartan-IV wielding Blaze of Glory.

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  The M45D in Halo Online.

List of appearances

• Halo: Reach (First appearance)
• Halo: Fall of Reach
  • Boot Camp
• Halo: Combat Evolved Anniversary
• Halo 4
  • Spartan Ops
• Halo: Spartan Assault
• Halo: Initiation
• Halo: Escalation
• Halo: Mortal Dictata
• Halo: Spartan Strike
• Halo: The Fall of Reach - The Animated Series
• Halo 5: Guardians
  • Limited Edition
• Halo: Ground Command
• Halo Mythos
• Halo: Tales from Slipspace
• Halo: Retribution
• Halo: Collateral Damage
• Halo: Official Spartan Field Manual
• Halo: Lone Wolf