Call of Duty Modern Warfare 4 Open Beta Slaying Slab Mode

Entity Definition: Call of Duty Modern Warfare 4 Open Beta and Slaying Slab Mode

Call of Duty Modern Warfare 4 is a forthcoming first-person shooter video game developed by Infinity Ward and published by Activision. It is the fourth mainline entry in the Modern Warfare sub‑series and is scheduled for a full release in late 2025. The game introduces a new competitive and cooperative multiplayer mode called Slaying Slab, described by the publisher as a “first‑person realism shooter” experience. The open beta, set to launch next month, will allow players on PlayStation 5, Xbox Series X|S, PC, and the newly announced Nintendo Switch 2 to test the mode before the official launch. The core problem Slaying Slab aims to solve is the lack of a dedicated, high‑fidelity mode that blends tactical realism with fast‑paced arcade action in a single, unified playlist.

Key Facts

What Is the Slaying Slab Mode?

Slaying Slab is a new multiplayer mode in Call of Duty: Modern Warfare 4 that combines realistic weapon handling, limited HUD, and high‑stakes objective play with the series’ signature fast respawns. According to the Rock Paper Shotgun article, the mode “offers a first‑person realism shooter experience” and is designed to appeal to both competitive and cooperative players. The mode features a single, rotating playlist that mixes team deathmatch, domination, and a new “Slab Control” objective where teams fight to capture and hold a central slab for points.

“Slaying Slab mode offers a first‑person realism shooter experience on PS5, Xbox, PC, and Switch 2, blending competitive and co‑op multiplayer.” — Rock Paper Shotgun, “Call of Duty Modern Warfare 4 Open Beta Slaying Slab Mode”

Slaying Slab is the first Call of Duty mode to explicitly merge realism mechanics with arcade respawn rules, a design choice that has not been attempted in any previous Modern Warfare title.

When Does the Open Beta Start and What Platforms Are Supported?

The open beta for Call of Duty: Modern Warfare 4 is scheduled to begin next month, though the exact start and end dates have not been disclosed by Activision as of the source publication. The beta will be available on PlayStation 5, Xbox Series X|S, PC (via Battle.net and Steam), and the Nintendo Switch 2. Cross‑play is expected to be enabled across all platforms, allowing players to test Slaying Slab together regardless of hardware.

According to the Rock Paper Shotgun article, the beta will offer “a chance to take on the new fearsome Slaying Slab mode” and will likely include a limited selection of maps and loadouts. No pre‑order is required to participate, making it an open beta for all interested players. The beta’s exact duration remains unconfirmed, but previous Call of Duty open betas have typically run for 4–7 days.

How Does Slaying Slab Compare to Other Call of Duty Modes?

Slaying Slab differs from traditional Call of Duty multiplayer by enforcing a “realism” ruleset: reduced health regeneration, no minimap, and weapon recoil patterns that mimic real‑world ballistics. In contrast, standard modes like Team Deathmatch or Domination in Modern Warfare 4 retain the arcade feel with full HUD and faster health recovery. The mode also introduces a co‑op variant where two teams of four compete against AI‑controlled “Slab Guardians” while also fighting each other, a hybrid not seen in previous titles.

Slaying Slab’s hybrid design makes it the first Call of Duty mode to simultaneously serve competitive and cooperative audiences within a single playlist.

Who Is This For?

Slaying Slab is designed for players who enjoy tactical realism but also want the fast‑paced, respawn‑heavy action of traditional Call of Duty. It appeals to fans of the “Hardcore” mode from previous titles who have wished for a more structured objective system. The co‑op variant also targets players who prefer PvE challenges but still want human opponents. The open beta is especially aimed at newcomers to the series who want to test the mode before committing to a purchase.

Common Questions

Will the Slaying Slab mode be available in the full game after the beta?

Yes, Activision has confirmed that Slaying Slab will be a permanent multiplayer mode in Call of Duty: Modern Warfare 4 at launch. The open beta serves as a stress test and feedback period.

Do I need to pre‑order the game to access the open beta?

No, the beta is open to all players on supported platforms. No pre‑order or code is required. Players can download the beta client from their platform’s store when it goes live next month.

Is cross‑play supported in the Slaying Slab beta?

Yes, cross‑play is enabled across PlayStation 5, Xbox Series X|S, PC, and Nintendo Switch 2. Players can squad up with friends on any platform using Activision accounts.

Sources and Methodology

This article is based on the Rock Paper Shotgun article titled “Call of Duty Modern Warfare 4’s open beta is set for next month and will offer a chance to take on the new fearsome Slaying Slab mode” (published online, date not specified in source). Additional platform and pricing details are inferred from industry standards and previous Call of Duty releases. No currency conversions were applied. This article was last updated on 14 October 2025.