Activision has released a new video for the upcoming Call of Duty: Black Ops 2, confirming that the game will, indeed, have a separate campaign for the zombies mode.
Earlier, in World at War and Black Ops, the zombies mode was just a co-op survival mode, but Treyarch seems to be taking it to an all new level. According to IGN, the game will also have other new zombie based modes, like a full fledged multiplayer, and, of course, the old survival mode.
Call of Duty: Black Ops 2 releases in November for the Xbox 360, PS3 and PC, with a Wii U release also planned for this year after the system releases.
Stay tuned for more updates.