https://www.pcgamer.com/call-of-duty-black-ops-4-battle-royale-mode-confirmed/

The Call of Duty: Black Ops 4 reveal event confirmed, as rumored, that the game will not have a "conventional campaign"—but will it feature a large-scale battle royale mode, complete with land, sea, and air vehicles from the previous games. 

The mode, called Blackout, will feature a map 1500 times bigger than Nuketown, with characters, weapons, equipment, and parts of favorite maps drawn from throughout the history of Black Ops—including the cast of Zombies.