From Activision:
The Modern Warfare 4 Beta begins on August 21 for players who pre-order the game digitally on Xbox Series X/S, PlayStation 5, and PC, and opens to all players, including Switch 2, on August 28.
The MW4 Beta will feature "Entrenched," an exclusive single-player Campaign Mission. Additionally, during Weekend 2 players can try out the new Call of Duty: Warzone Resurgence Map, Zodiac. Both are firsts for the Call of Duty franchise, and round out a massive Beta content offering across both weekends.
Players who digitally pre-order Modern Warfare 4 on any platform will receive access to the single player Campaign a week early on October 16. The worldwide launch of the game is on October 23rd.

