https://www.polygon.com/2018/5/17/17364486/call-of-duty-black-ops-4-battle-royale-blackout

Call of Duty: Black Ops 4 - battle royale mode

all of Duty: Black Ops 4 will include a battle royale mode called Blackout, Activision announced during the game’s live reveal today.

The action will take place on the biggest map that developer Treyarch has ever made, roughly 1,500 times larger than Nuketown, according to the company. From the video shown during today’s presentation, Blackout’s map appears to include features of other well-known maps and locations from the larger Call of Duty universe.