Activision confirms that the Call of Duty: Modern Warfare 4 multiplayer beta takes place in two phases in August. Early access begins August 21 and runs through August 25, available on PC, PS5, and Xbox Series X|S for players who preorder the game. After a short gap, a free open beta starts August 28 and continues through September 1, letting everyone participate regardless of preorder status.
Across the coverage, Activision also details how eligibility works. Early access is tied to preorder purchasing, while the open beta is not. The company also indicates that an online multiplayer subscription may be required for participation. For platforms, the early-access window is limited by preorder timing: one source notes that Switch 2 does not offer early access because preorders are scheduled to begin later, though the open beta period is expected to add Switch 2 support.
Activision says the beta includes multiple maps and modes, a broad range of weapons (up to 19), and a variety of tactical and lethal options, field upgrades, perks, and killstreaks. Preorder Vault Edition players can also use operators and weapons included in that edition, and Activision says more beta-related details will be shared in the lead-up to launch.
