Sniper Rifle
The SRS99-S5 AM is a gas-operated, magazine-fed, semi-automatic Sniper Rifle. This weapon has exceptional accuracy and the ability to take out energy shielding and high-density armor alike. This weapon has a four-round magazine and has a tan color on the stock and scope.
Hydra Launcher
The MLRS-1 Hydra Gyroc Launcher, often shortened to Hydra Launcher, is a medium-range airburst missile launcher introduced in Halo 5: Guardians. It features a 6 missile cylinder and a lock-on feature when zoomed in.
Assault Rifle
The MA5D ICWS is a gas-operated, magazine-fed, automatic assault rifle designed to execute close-quarters combat with lethal efficiency, regardless of hostile counter-op, environmental conditions, or duration of use in the field. The MA5D fires the 7.62 NATO round. Like previous incarnations, the MA5D also contains a built-in ammo counter and compass.
Rocket Pod Turret
The M80B Multiple Launch Rocket System, more commonly known as the rocket pod turret, is a heavy weapon featured in Halo 5: Guardians. It was employed by the UNSC in conflicts after the Requiem Campaign. As support weapons, picking up the rocket pod turret would result in a lack of mobility.
SAW
The M739 Light Machine Gun, also known as the SAW (Squad Automatic Weapon), is used in heavy engagements where sustained or suppressive fire is required.
Magnum Pistol
The M6H Personal Defense Weapon System is a M6 Series-handgun manufactured by Misriah Armory. It is an up-sized Officer's model and has a smart-linked KFA-2 ×2 scope and an electroless nickel finish. It was adopted as the standard-issue personal sidearm of all branches of the UNSCby 2555.
The Weapon/Anti-Vehicle Model 6 Grindell/Galilean Nonlinear Rifle, also known as the Spartan Laser, is the UNSC's ground-based, man-portable, anti-vehicle, directed energy weapon.
It is one of two known battery-powered UNSC weapons, the other being the Model 99 Special Application Scoped Rifle (used by Sgt. A. Johnson during Operation: KALEIDOSCOPE) and is the most powerful infantry weapon fielded by UNSC forces, even overpowering the Rocket Launcher. It is capable of penetrating multiple targets, including tanks, unlike the Sniper Rifle, which can only penetrate infantry.
Spartan Laser
The M57 Pilum Assault Weapon appears in Halo 5: Guardians alongside its mythic predecessor, the M41 'SPNKr' rocket launcher.
M57 Pilum
Gauss Cannon
The M555 Electromagnetic Launcher, more commonly known as the gauss turret, is a heavy weapon featured in Halo 5: Guardians. It was employed by theUNSC in conflicts after the Requiem Campaign. As support weapons, picking up the gauss turret would result in a lack of mobility.
Shotgun
An upgrade from the previous M45 and M90 models, the M45D fires M296 SC 8-gauge magnum shells with a magnetorheological dampening system to reduce recoil, making it more comfortable to use in the battlefield. Although significantly more technologically improved than its predecessors, the M45D lacks a smart-link controllable choke.
Rocket Launcher
The M41 SSR fires 102mm HEAT shaped chargerockets. The launcher sports a 2x scope and can fire rockets over long distances with devastating accuracy, although its altitude decreases over longer distances.
When reloaded, the barrels are removed and two preloaded barrels are then inserted back into the unit. With this mechanism, a Marine can greatly reduce the weight he has to carry without throwing the weapon away like some contemporary disposable rocket launchers
DMR
The M395 DMR is a gas-operated, semi-automatic, magazine-fed, shoulder-fired marksman's rifle that is equipped with a smart-linked, telescopic, rail-mounted sight for scout personnel. This rifle favors mid- to long-ranged combat, offering impressive stopping power over a long distance
SMG
The M20/Personal Defense Weapon is a UNSC weapon being tested as a possible replacement for the M7/Caseless Submachine Gun and is currently issued to SPARTAN-IV soldiers.
Battle Rifle
The BR85N Service Rifle, abbreviated BR85N SR, and more commonly known as the Battle Rifle, is a UNSC infantry selective fire service rifle used primarily in the post-war years. It is a gas-operated, magazine-fed rifle that was only widely adopted after the Human-Covenant War mainly due to manufacturing concerns and logistical issues with its ammunition.
Rail Gun
The Asymmetric Recoilless Carbine-920, also known as the ARC-920 or simply the Railgun, is a compact-channel linear accelerator that fires a high-explosive round at incredible speed. The charge time is approximately two seconds and can be fired with only a partial charge at the cost of lesser damage. A direct hit will kill any player regardless of charge time.