Return of Zombie Ops is a zombie modification for Call of Duty 4, it features content from Black Ops Zombie mode aswell as from Modern Warfare 3 Survival mode and Ghosts Extinction mode. It's set slightly in the future with some weapons from Ghosts, Black Ops series and Modern Warfare series.
How about popping some zombie limbs?
God, only mtg can actually get zombies to be as real as the actual zombie game types, good job Eagle, :).
-Beleez