Call of Duty: Black Ops 4 Blackout
PC players will get to play the Blackout (battle royale) mode for Call of Duty: Black Ops 4 starting on September 14 at 10AM (PT). Those looking for an open beta will have to wait just one day for the 15th to roll around.

This information comes from a new tweet from the official Treyarch Twitter.
Fans got a small look at Blackout near the end of the latest trailer for the game's come-and-gone multiplayer beta from last month.