4. Zombies
Mark Lamia, Studio Head at Treyarch, has said that Black Ops 2s Zombie mode is the teams biggest most ambitious Zombies effortever, which can only spell good news to those of us who loved the mode. The scale of this year's edition is grander than we have ever seen before, and the introduction of more zombies, more co-op players and larger maps can only be a good thing. The introduction of new environments, new weapons and new characters also means that Zombies has enough depth on its own to justify consideration as a full game alone, and makes the price-tag of Black Ops 2 seem an awful lot more palatable. Here's the excellent grand reveal of the Zombie mode... http://youtu.be/YH_9GzaUW40