Activision and Treyarch have announced when the Blackout beta for Call of Duty Black Ops IIII will take place. The beta will take place on September 10 on PS4 first, with Xbox One and PC likely to follow. The beta will include Solos, Duos and Quads game modes. It should be noted if you played the multiplayer beta, then you have access to the Blackout beta. Also, don’t delete the beta client as Treyarch will update it for Blackout to be playable. Call of Duty Back Ops IIII release on PS4, Xbox One and PC on October 12.
UPDATE 8/22/18 - Activision has announced when Blackout beta will be coming to Xbox One and PC. The publisher revealed on Twitter the open beta will arrive on September 14 on Xbox One. As for PC players, the beta will go live September 14 at 10 a.m. PT for those who digitally pre-ordered Black Ops 4. The PC beta will then be able to everyone with a Battle.net account on September 15 at 10 a.m. PT.