You got your zombie horde in my Call of Duty! No, you got your Call of Duty in my zombie horde. Bringing together two perennial favorites, Activision has created the wildly addictive Call of Duty: Black Ops Zombies. Players can team up with three other players to take on the zombie apocalyspe in a dozen of interesting environments including a Cold-War era cosmodrome with even more absurd weapons such as a thunder gun. Oh yeah, did we mention the zombie monkeys?