The Dates Are In!
Call of Duty has announced that the Call of Duty: Black Ops 4 Blackout beta will begin on September 10. We do not know for how long the beta will be on for only that it will come to PlayStation 4 first and other platforms later. Blackout will be playable on PlayStation 4, Xbox One and PC.
They also revealed in the short video that you will be able to play in,
You can get access to the Blackout beta by pre-ordering Call of Duty: Black Ops 4 or If you had access to the MP Beta from codes that were given out. Also, ensure you keep the multiplayer beta file on your system as that file will automatically update to the Blackout beta in September.