https://www.gamespot.com/articles/how-call-of-duty-black-ops-4s-fortnite-like-battle/1100-6459077/

Call of Duty: Black Ops 4 has a battle royale mode called Blackout. We still do not know much in the way of specifics like if it will support 100 players like Fortnite and PUBG or what the actual gameplay looks like. But it's an intriguing--if not surprising--move for the Call of Duty series. We spoke to Call of Duty boss Robert Kostich recently about Blackout, in particular what it does to stand apart from Fortnite and PUBG, and if it could ever be a standalone offering.

Months ago, we heard that Activision might be interested in getting in on the battle royale trend. We don't know a specific timeline for what Treyarch came up with the idea for Blackout, but Kostich said is simply "emerged" as something the studio wanted to pursue to give fans yet another way to experience Call of Duty in a new way.