Zombies Mode Expansion:
Black Ops took the Zombies mode to the next level, adding a richer storyline, new characters, and more complex maps.
Storyline:
This game introduced the "Aether" storyline, featuring characters like Edward Richtofen, Tank Dempsey, Takeo Masaki, and Nikolaï Belinski. These four soldiers battle through different zombie-filled environments, uncovering a story tied to the origins of the zombie outbreak.
New Features:
The game introduced new features like "4-player co-op", new perk machines, and a more advanced Easter egg quest.