The Eliminator Chain Gun is a weapon used by the Harbinger gunship. It is a 25mm chain gun mounted on the nose of the Harbinger. Linked to targeting systems that track the gunner's eye movements, it is an extremely accurate weapon, capable of shredding lightly-armored surface threats without causing significant damage to the surrounding area. It also has a very high rate of fire. As opposed to the more powerful, but less accurate and slower 120mm Collider Cannons of the Harbinger.