Activision has finally confirmed that Zombies will be in Call of Duty: Black Ops. The wave-based co-op mode will once again support up to four players. Apart from that, not much else is known about it. Treyarch boss Mark Lamia has promised “brand new zombie experiences” and “a nice surprise for fans” in a recent press release.
That document also unveiled a new multiplayer co-op mode called Combat Training that supports up to six people. It further went on to say that Prestige and Hardened editions of Black Ops will contain four updated co-op maps from World at War.