https://techcrunch.com/2018/05/17/call-of-duty-black-ops-iiii-adds-battle-royal-mode-while-taking-the-game-back-to-boots-on-the-ground/

In recent releases, Activision has taken its Call of Duty franchise into space (with its Infinite Warfare) and back in time (with the World War II release); now it’s looking to its past to bring it back to glory, while adding the massive multi-player Battle Royale mode.

The new Black Ops game is set within a narrative universe between Black Ops II and Black Ops III and stresses multi-player gaming like the battle royale, improved league play and collaborative features for gamers.