https://www.pcgamer.com/watch-the-call-of-duty-black-ops-4-launch-gameplay-trailer/

Call of Duty: Black Ops 4, the game about traveling back in time to fight zombie tigers in the Roman Coliseum (or something like that), comes out in, let's see here, two-and-a-half weeks. Okay, so you might think that being so far down the road makes a "Launch Gameplay Trailer" a little premature at this point. Too bad, because here it is. 

The video features gameplay from all three Black Ops 4 modes: Zombies, Blackout, and the catchall "multiplayer" combat. There's no single-player campaign in Black Ops 4, but Zombies will serve as something of a stand-in, with storyline leading players hither and yon—including that trip to the Coliseum—to do co-op battle with hordes of the undead.