Activision has officially revealed that "Zombies" are coming to Call of Duty: Black Ops which hits stores worldwide on November 9th. The Zombies were originally introduced in Call of Duty: World at War and became an instant hit.

This follows the announcement that four updated co-op maps from Call of Duty: World at War will be made available as part of the Call of Duty: Black Ops Prestige and Hardened Editions, along with the premium edition Steelbook Case, custom Black Ops limited edition medal and an exclusive Black Ops Avatar outfit.

Gamers can also experience an all new co-op game in Call of Duty: Black Ops Multiplayer with Combat Training. Up to six players can rank up in this dedicated and exclusive multiplayer mode battling against enemy AI.