I was waiting for zombie games to elaborately rip-off Left 4 Dead. Not surprised that Call of Duty was the first to do it. Treyarch and Infinity Ward: the masters of "originality".
@OneSamTwoCups Firstly. CoD zombies and L4D are vastly different from one another.And more importantly, World at War, where CoD Zombies started, came out only three weeks after the original L4D. It's like saying L4D ripped off Resident Evil because you shoot zombies in both of them.






