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. Zombie hordes have taken over the Exclusion Zone, but they're not alone.