2024's Call Of Duty: Modern Warfare II featured 2-player co-op missions and 3-player Raids, for instance. In Call Of Duty: Ghosts, players faced off against alien monsters in that game's co-op Extinction mode. But Sledgehammer Games is behind this year's upcoming title and it appears Zombies will make a return.
OPERATION DEADBOLT: AN ALL-NEW OPEN-WORLD ZOMBIES EXPERIENCE\n\n For the first time, team up with other squads to survive and fight massive hordes of the undead in the largest Call of Duty Zombies map ever.