Call of Duty: Modern Warfare 4 beta begins August 21 for PC, PS5, Xbox

The beta for *Call of Duty: Modern Warfare 4* has officially begun, offering players an early glimpse into the highly anticipated first-person shooter ahead of its October 23, 2026, launch. The testing phase, split into two weekends, marks a pivotal moment for fans of the franchise, with Infinity Ward and Activision detailing the schedule, platforms, and content available for both pre-order holders and the general public.

The early access beta commenced on August 21 and runs through August 25, exclusively for players who pre-ordered the game on PC, PlayStation 5, and Xbox Series X|S. This initial phase allows participants to test core multiplayer elements, including the newly introduced *Kill Block* mode, which features adaptive modular maps and dynamic layout changes. The beta also includes 19 weapons, multiple multiplayer maps, and returning modes like *Search & Destroy* and the *Training Mobility Course*. Pre-order holders gain access to exclusive operators from the Vault Edition, such as Price, Valeria, Ghost, and Blix, as well as unique weapon blueprints.

Following the early access period, the open beta launches on August 28 and concludes on September 1, expanding to all supported platforms, including the Nintendo Switch 2. Unlike the early access, the open beta requires no pre-order, making it accessible to all players. This second phase introduces additional content, such as the *Gunny* loadout system, which assists players in customizing their gear, and a wider selection of tactical items, lethals, and killstreaks. The *Kill Block* mode remains a highlight, with its modular map system capable of generating over 500 layout combinations, ensuring a constantly evolving gameplay experience.

The beta schedule aligns with the *Call of Duty: NEXT* global event on August 21, which serves as the official kickoff. The event, featuring live gameplay demonstrations, developer insights, and multiplayer details, sets the stage for the beta tests. Activision and Infinity Ward have emphasized the importance of player feedback during the beta, using it to refine the game’s mechanics and balance before the full release.

The *Kill Block* mode, in particular, has generated significant buzz. Designed as a high-stakes, fast-paced experience, it places players in a fictional military training facility where three sections of the map—known as Slabs—can reconfigure between matches. This dynamic environment forces players to adapt their strategies on the fly, with rounds featuring 3v3 and 10v10 *Gunfight* rules. The mode’s trailer, set to a track by Baby Keem, highlights its chaotic, action-packed nature, reinforcing its status as a standout feature of the beta.

For Nintendo Switch 2 players, the open beta represents a major milestone. *Modern Warfare 4* is the first Call of Duty title to launch on a Nintendo platform since *Call of Duty: Ghosts* in 2013, marking a strategic shift for Activision. Pre-orders for the Switch 2 version begin on August 26, but the open beta allows players to test the game without purchasing it. The Switch 2 version is being developed natively by Infinity Ward, signaling a commitment to optimizing the experience for the hardware.

The beta also serves as a testing ground for the game’s broader multiplayer ecosystem, including the return of *DMZ*, the extraction shooter mode. While details remain sparse, Infinity Ward has hinted at a dynamic environment with shifting weather, military objectives, and hostile forces, promising a persistent, evolving sandbox for players.

Activision has confirmed that the full game will launch on October 23, 2026, for PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch 2. The beta’s timing allows developers to address feedback and fine-tune the multiplayer experience before the release. Additionally, the game’s campaign remains locked during the beta, as is standard for Call of Duty titles, with no details on its story or setting provided at this stage.

For players interested in participating, early access requires a pre-order on supported platforms, while the open beta is free to join. Details on rewards, progression systems, and additional content will be revealed in the coming weeks. As the beta progresses, it will provide a critical opportunity for fans to shape the final version of *Modern Warfare 4* before its global launch.