The NEMESIS Decoy Launcher is a UNSC defensive system used on almost all armoured fighting vehicles employed in the UNSC. The Nemesis is a rotary decoy dispenser, fed from 50 round caseless grenade projectiles. The system uses three barrels which can be independently loaded and fired and are mounted on a turret giving them strategic launch capacities to cover the vehicle. NEMESIS launches are usually controlled by the ADIS system, but they can be launched manually by a vehicle operator. NEMESIS decoys can be fed with any mixture of munitions, allowing them to be mixed to mission requirements.