Call of Duty: Black Ops Cold War beta early access is reserved for those who have pre-ordered any digital version of the game. Activision has released a schedule including early access dates and open beta dates.
The time frames for the beta are called weekends, a multi-day period beginning on Thursday, lasting over the weekend into the following Monday.
Weekend 1: Early Access
Exclusive to PS4, those who have pre-ordered a digital edition of the game can have early access to the beta from Thursday, October 8 to Monday October 12.
Weekend 1: Open Beta
Exclusive to PS4, open to all players from Saturday, October 10 to Monday, October 12.
Weekend 2: Early Access (includes crossplay)
Open for all PS4 players and for Xbox/PC players who have pre-ordered a digital edition (for Xbox One/Xbox Series X/PC) of Black Ops Cold War. Early access in Weekend 2 is Thursday, October 15, and Friday, October 16. An Xbox Live Gold subscription will be required to play on Xbox. A Battle.net account will be needed for PC players.
Weekend 2: Open Beta (includes crossplay)
Open to all PS4, Xbox and PC players from Saturday, October 17, to Monday, October 19. An Xbox Live Gold subscription will be required to play on Xbox. A Battle.net account will be needed for PC players.
Recently updated with further information on the Black Ops Cold War beta early access dates