Marcus Fenix - Marcus Fenix established himself as a war hero during the Pendulum Wars. He was on the fast track to an outstanding military career - until the monstrous Locust horde emerged from the underground. Now leading Delta Squad, he simply fights for survival. Locust Grunt - The savage Drones power the Locust Horde. A single Drone, armed with its Hammerburst assault rifle, is more than a matach for a full squad of COG soldiers. In groups, they're even worse. Drones work together to ambush their enemy, emerging unexpectedly from the underground with devastating resuls.