Skip to content
27 August 2026

Call of Duty: Modern Warfare 4 Open Beta Guide for Nintendo Switch 2 and Other Platforms

Get ready for the Modern Warfare 4 Open Beta, featuring new maps, weapon balance updates, and exclusive rewards on Nintendo Switch 2 and other platforms.

Call of Duty: Modern Warfare 4 Open Beta Guide for Nintendo Switch 2 and Other Platforms

The Modern Warfare 4 Open Beta is just around the corner, promising an exciting preview of the latest installment in the beloved franchise. From August 28 to September 1, players on Nintendo Switch 2 PS5, Xbox Series X|S, and PC can dive into new multiplayer modes, a playable campaign mission, and the highly anticipated Zodiac map in Ground War: Combat Outpost.

This beta phase is not just about fun; it’s a critical period for Infinity Ward to gather feedback and fine-tune the game. The Early Access weekend revealed significant adjustments to weapon balance and audio, setting the stage for an even more refined experience in the Open Beta.

Weapon Adjustments and Community Feedback

During the Early Access weekend, Infinity Ward pushed three rounds of weapon balance updates in response to community feedback. The focus was on time-to-kill (TTK) footstep audio, and attachment penalties. These changes highlight the studio’s commitment to addressing player concerns promptly.

The AXION and Han 86 assault rifles saw reductions in their maximum effective damage ranges, while the Kastov 762 and M4 underwent specific adjustments to their damage tiers and headshot multipliers. Submachine guns like the ISO Nightshade received significant nerfs, and the FiNN LMG had its damage reduced across all range tiers. These tweaks aim to create a more balanced and engaging gameplay experience.

Attachment Viability and Audio Fixes

Alongside TTK adjustments, attachment trade-offs were a major focus. The August 23 patch removed ADS penalties for optics and underbarrel attachments, making them more viable. The HoloMini Reflex and Reflex optics lost their ADS penalties entirely, and the BipodUnderbarrel Launcher and Underbarrel Shotgun followed suit. Movement speed benefits were also added to the Vertical Grip to make it more desirable.

Footstep audio was another area of improvement. On August 22, enemy footstep and gear audio volume were reduced, and their audible range was shortened. These changes aim to enhance the

Exclusive Rewards and Participation Details

The Open Beta offers a variety of exclusive rewards for players who participate. By signing in with an Activision Account players can earn cosmetic rewards such as the “Dread Tiger” Operator Skin – Reece and the “Beta Forged” ISO Nightshade Weapon Blueprint. These rewards are tied to player levels and can be accessed when the game launches.

Additional rewards include default items like emblems, calling cards, sprays, and loading screens, as well as mobility course challenge rewards and combat record rewards. These incentives encourage players to engage deeply with the beta and explore all its features.

How to Participate

Participating in the Open Beta is straightforward. Players can download the beta on their preferred platform without needing a pre-order or beta codes. The beta is scheduled to begin at 10:00 AM PT on August 28 and will run through September 1. Pre-loading the beta is recommended to ensure a smooth start.

Whether you’re a longtime fan or new to the franchise, the Modern Warfare 4 Open Beta promises an exciting glimpse into the future of the series. With new maps, balanced weapon adjustments, and exclusive rewards, it’s an opportunity not to be missed.

Author

Olivia Brooks

Olivia Brooks writes about city breaks and culture. She has a knack for matching a destination to the mood of the week, from sun-soaked piazzas to rain-free museum days.