Treyarch has finally decided to unveil "one of the most anticipated features and worst kept secrets" in Call of Duty: Black Ops -- Zombies. "Zombies have been such a hit with our community that we were committed to bringing brand new zombie experiences to Call of Duty: Black Ops," studio head Mark Lamia said. The mode will once again pit four co-op partners against wave after wave of encroaching undead, joining the new "Combat Training" mode which features up to six person co-op against enemy AI.

Four of the zombie-based maps from Call of Duty: World at War are being remade for Black Ops and will be packed in with the Prestige and Hardened editions of the game. The release doesn't detail how many maps the mode will be getting in total, or how much the aforementioned remakes will cost folks who don't purchase the Prestige or Hardened editions, but we've reached out to Activision for clarification.

This article was originally published on Joystiq.