< Halo 3
Spartans are trained to use any weapon found on the battlefield-Human or otherwise. This training and philosophy means that resupply is always just one victory away. Efficient and deadly, Spartans often look at opposing forces as a kind of mobile weapons cache.
USNC Weapons
| Gun Hand | Shoot | Reload | 
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| Right | 
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Change Primary Weapon | Melee Attack |
| Left | 
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Drop Secondary Weapon | Drop Weapon Melee Attack |
Magnum
12 rounds/Magazine Can Dual-Wield |
A recoil-operated, semi-automatic handgun. Accurate and utilitarian in design, it is the ideal sidearm for a wide variety of USNC troops, packing a strong punch for such a small gun. |  |
Sub Machine Gun
60 Rounds/Magazine Can Dual-Wield |
Sub Machine Guns, while not accurate over long distances, are particularly effective at close quarters. What this model lacks in accuracy, it makes up for in magazine capacity, a rather large clip. |  |
Assault Rifle
32 Rounds/Magazine |
Gas operated, fully-automatic projectile rifle capable of sustained continuous fire. Accurate if used in short, well aimed bursts and otherwise ferociously powerful at close range. |  |
Battle Rifle
36 Rounds/Magazine |
The UNSC’s accurate semi-automatic medium range rifle, fires three rounds per squeeze of the trigger. This particular rifle has a 5x zoom making it ideal for mid ranged battles. Press  to zoom in and out.
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Shotgun
6 8 Gauge Shells |
The UNSC’s resident close-quarters assault weapon. One shot to your foes head is likely to take it clean off with a blast from one of these semi-automatic shotguns. |  |
Sniper Rifle
4 Rounds/Magazine |
The primary sniper rifle system used by UNSC forces. The clip will leave some to be desired, but the power will not. Equipped with a scope capable of 5x and 10x zoom, great for the long range, incognito, battles. Press to zoom in for 5x, again for 10x and once more to zoom out.
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Rocket Launcher
2 HE Rockets per Launch Assembly |
Equipped with a 5x scope, this Rocket Launcher has a high degree of both destructive force and accuracy. Though it packs a punch, it has the burden of limited rounds before reload as well as a minimal carrying capacity. Use your rockets wisely. |  |
Spartan Laser
5 Shots/Charge |
A directed energy weapon. Its battery conservation scheme requires the user to give it's target fair warning during the brief charge lag. A zoomed scope will assist in aiming, but the quickness of the blast will leave many missing their targets anyways, unless truely skilled. However, it is still one of the most powerful portable armaments in the UNSC arsenal. |
Covenant Weapons
Plasma Pistol
100-150 kV, 2-3 dA Can Dual-Wield |
This Covenant weapon is capable of quickly firing low powered shots, or of charging a single high-powered shot which can rapidly deplete an energy shielding. |  |
Plasma Rifle
420-600 Rounds a Minute [variable] Can Dual-Wield |
A common, light plasma weapon favored by Covenant forces. The plus factor? You never need to reload this gun. The down fall? There will be brief pauses from shooting if the gun is left to overheat from constant, non-stop firing. |  |
Mauler
 Mauler - (Type-52 Pistol) 5 shells/Magazine Can Dual-Wield |
This massive handgun is favored by Brutes and is based on their native, pre-Covenant technology. I packs a devastating punch, but is fairly inaccurate in long range. The cross-hair display is possibly too large for even some to use in close range situations. |
Brute Spiker
48 Spikes/Magazine Can Dual-Wield |
This vicious and dangerous rifle is favored by Brutes and based on their native, pre-Covenant technology. Shoots sharp, inaccurate spikes that allow you to mow down your foes quickly. |  |
Needler
30 Needles/Caddy |
Razor sharp crystalline projectiles with a combined explosive property, are fired from this elaborate Covenant weapon. The projectiles follow the desired target, like a homing missile, but to a lesser degree extent. |  |
Carbine
36 Rounds/Magazine |
An unusual Covenant projectile weapon, firing shielded radioactive rounds. This semi-automatic has a 5x zoom allowing for some mid range precision shooting. |  |
Brute Shot
6 Rounds/Belt |
This semi-automatic gun launches explosive projectiles pretty accurately at even long ranges. It also has a deadly bayonet equipped under it's barrel, very dangerous in close quarters. Its only draw back is the limitation of ammo, allowing for 6 rounds per belt, while only being able to carry 2 extra belts. |  |
Beam Rifle
18 Shots/Charge |
The Covenant equivalent to the sniper rifle, a hand carried particle beam weapon, with an adjustable 5x - 10x scope. Again, no reload required, has a minor drawback of brief pauses from shooting if the gun overheats from a happy trigger. Press to zoom in for 5x, again for 10x and once more to zoom out.
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Energy Sword
50 Uses/Charge |
Favored by Elites, this energy weapon is more dangerous than its ceremonial nature implies. Allows for easy slaying of any foe while also offering a somewhat defensive property if swung near the same time as one is swung in your direction. |  |
Gravity Hammer
Gravity Hammer (Type-2 EW/Hammer) 20 Uses/Charge |
Favored by Brutes, this weapon is as much a symbol of leadership as it is a weapon. The brute force behind this weapon allows you to pummel your enemies. Offers a defensive property, allowing you to bat projectiles away with a simple swing. What you miss, the force of gravity caused by the swing is likely to hit. |
Grenades
You can carry a maximum of two of each grenade type at a time. Press to switch between available grenade types when not dual-wielding.
Frag Grenade
Frag Grenade - M9 HE-DP Kill Radius: 5m Casualty Radius: 15m |
Standard issue UNSC fragmentation grenade. Ideal for, but not to be limited to, enemies in small areas. Bounce them off walls to get to hard to reach areas. Your foes will either take a hit or come out from hiding. |
Plasma Grenade
Plasma Grenade (Type-1 AP-G) Kill Radius: 4m Casualty Radius: 12m |
Highly explosive Covenant grenade. The beauty of these little blue/purple grenades is that they have an adhesive casing, allowing you to stick these directly to your foes. Hopefully they don't notice and run after you before the fuse goes... |
Spike Grenade
Spike Grenade (Type-2 AP-FG) Kill Radius: 3m Casualty Radius: 11m |
A new grenade for the Spartan arsenal is the requisitioned Brute Spike grenade, a primitive and deadly explosive device that impales any target. Has a somewhat adhesive property that holds tight until it explodes in a shredding hail of razor sharp metal. |
Support weapons
Halo 3 introduces the idea of Support weapons, large weapons that require the player to be controlled in third person view. Players cannot melee, nor throw grenades while using these weapons. A turret is typically activated by pressing . A Spartan, however, is strong enough to tear off these weapons (press while using the turret) and use them almost like rifles. When detached, these weapons have limited ammunition capacity.
Machine Gun
Heavy Machine Gun AIE-486H 200 Shots/Charge |
A Spartan is easily strong enough to remove, or more accurately, rip a turret-mounted machine gun from its tripod base. Although doing so will detach it from its main ammo feed, a Spartan can use whatever is left attached to the gun to devastating effect. It’s heavy even for a Spartan, and slow to spin up to full firing rate. |
Plasma Cannon
| Missing Plasma Cannon image
Type-52 Automatic Plasma Cannon 200 Shots/Charge |
Very similar to the above machine gun, shooting plasma rounds instead of bullets. |
Missile Pod
Missile Pod - LAU-65D 8 Guided Missiles/Charger |
Great for taking down vehicles quickly. The missiles are equipped with a homing beacon allowing them to change direction in the air to follow their originally intended target. |
Flame Thrower
FlameThrower - M7057 DP 100 oz/Charger |
The M7057 is a standard chemical flamethrower, which projects and ignites a stream of volatile, semi-liquid fuel. |
Other Weapons
These objects can be used in melee attacks. Used mostly in multi-player modes, aside from the hidden skulls in campaign mode. To pick these up, hold . To attack, press .
Ball
Standard issue information storage and sensory group housing.
Bomb
Mainly used for blowing up targets, but yes, you can hit people with it!
Flag
Its sole purpose is to bring it back to your base, but you will need to swing it to defend yourself.