New Call Of Duty Trailer Reveals More Info On Zombies' Firebase Z Map New enemies, a new weapon, and a whole lot of story are coming with the next free Zombies update The Dark Aether storyline may be a product of its predecessors, but in a new look at the Firebase Z map for Call of Duty: Black Ops Cold War, the Zombies team explained how this part of the Call of Duty universe will be coming into its own. Firebase Z, the map announced last year, is set in Vietnam, and players will be able to explore two separate areas. One is, of course, the firebase where scientists and soldiers carried out experiments and mined dark aether. The other is a village where the scientists slept and did their research. Because of all the scientific equipment lying around, players will be able to interact with some things mechanically, though we'll have to wait until the map drops to see what all is possible, including finding some Firebase Z Easter Eggs.