The M1A2 Abrams Main Battle Tank is a human vehicle that specialises in battling enemy armour and destroying buildings. It is heavily armoured, but slow. It has a powerful, by human standards, cannon and an unused heavy machinegun turret. This cannon is one of the few Human weapons that are effective enough to be worth fielding against the Hierarchy and is capable of knocking back light to medium infantry such as Grunts. The turret is suspected to be unused as it would not affect the Hierarchy enough to be worth the time to shoot it.