https://www.polygon.com/2018/7/17/17583074/call-of-duty-black-ops-4-zombies-tiger-titanic

We’ve known for a while that Call of Duty: Black Ops 4 won’t have a traditional single-player campaign. What it will have is an expanded Zombies game mode, one that developer Treyarch is clearly putting a lot of energy into. Today it released a new trailer for Zombies, and it looks completely over the top.

It all begins with a monologue by a single character, a woman named Scarlett. She’s joined by Bruno, Diego and Shaw to round out the four-player cooperative mode, but judging from this new trailer the story seems to revolve around her. The action starts on the Titanic, and includes a massive gunfight across multiple decks — including the Grand Staircase which featured prominently in the 1997 film starring Leonardo DiCaprio and Kate Winslet.