Black Ops II's fourth and last DLC, Apocalypse, was released on 27th of August for Xbox 360 and a month later for PlayStation 3 and PC. Apocalypse is priced at 1200 MS Points or $15.
Apocalypse features a total of 4 multiplayer maps, of which 2 are remakes. There is also a new Zombie map:
The following 10 new achievements and trophies are available in Apocalypse: