Activision has expanded public testing for Call of Duty: Modern Warfare 4 into a fully open beta session running through September 1 at 1:00 p.m. ET (10:00 a.m. PT). Unlike the preceding early access phase that required preorders or specific access keys, the current trial allows any player across console and PC platforms to download and evaluate Infinity Ward’s upcoming multiplayer infrastructure. The playtest serves as a primary operational rehearsal ahead of the game’s full commercial release scheduled for October 23, providing critical telemetry on server stability, matchmaking systems, and gameplay movement revisions.
During the initial Early Access period from August 21 to August 25, the title recorded a peak concurrent player count of 115,145 on Steam alone, according to telemetry reported by PCMag. The ongoing open session extends access to PlayStation 5, Xbox Series X/S, PC via Steam, Battle.net, and Xbox on PC, as well as Nintendo’s Switch 2 platform. However, while entry hurdles have been removed on the commercial side, PC players face significant hardware-level security prerequisites that determine whether their systems can connect to online servers.
This report draws on information published by pcmag.com and thefpsreview.com.
Broadened Access and Multiplayer Scope Across Platforms
The open beta framework allows players to test multiplayer modes without committing to a purchase. Preloading opened on August 26, allowing participants to acquire the client beforehand. Content made available during this second weekend includes core 6v6 multiplayer maps and playlists, Ground War: Combat Outpost, Kill Block, the standalone campaign mission “Entrenched,” and the new Zodiac Resurgence map integrated into Warzone. Progression rewards earned throughout the testing window will transfer directly to player accounts upon the title’s formal launch on October 23.
The inclusion of Nintendo Switch 2 alongside established high-performance consoles represents an expanded distribution strategy for the franchise. Digital preorders remain available across platform storefronts, granting buyers access to cosmetic rewards and a Campaign Early Access period set to begin on October 16. However, the operational baseline for PC participants is divided between accessible system specs and strict security protocols.
Low Hardware Thresholds vs. Rigorous Firmware Mandates
System requirements published by Activision establish a relatively low hardware barrier for a major 2026 title. The minimum specification requires an Intel Core i5-8400 or AMD Ryzen 5 1600 processor, paired with 12GB of system RAM and an NVIDIA GeForce GTX 970, GTX 1060, AMD Radeon RX 470, or Intel Arc A580 graphics card with at least 3GB of VRAM. Recommended specifications target an Intel Core i7-8700 or AMD Ryzen 5 3600, 16GB of system RAM, and graphics hardware on par with an NVIDIA RTX 3060 Ti, AMD Radeon RX 6700 XT, or Intel Arc B580 with 8GB of VRAM. Solid-state drive (SSD) storage is mandatory across all tiers.
Despite the modest compute requirements, technical analysis by The FPS Review highlights a strict firmware gate enforced by Activision’s RICOCHET anti-cheat architecture. To launch the multiplayer client on PC, systems must have Trusted Platform Module (TPM) 2.0 and Secure Boot actively enabled within the system BIOS. Rather than degrading performance or issuing soft warnings, a failure to meet these security criteria results in a hard block, preventing the game client from establishing a network connection.
RICOCHET Anti-Cheat and the Hardware Attestation Trade-Off
Enforcing TPM 2.0 (identified as PTT on Intel motherboards and fTPM on AMD platforms) and Secure Boot reflects a broader industry shift toward kernel-level and firmware-gated anti-cheat mechanisms. For users with older system installations or custom PC builds where Legacy/CSM boot modes were preserved, enabling Secure Boot frequently requires repartitioning storage drives from Master Boot Record (MBR) to GUID Partition Table (GPT) to maintain compatibility with Unified Extensible Firmware Interface (UEFI) standards.
This hardware attestation model forces a clear trade-off between user configuration autonomy and competitive integrity. Modern cheat tools increasingly operate at low system levels to evade standard software detection, leading developers to rely on hardware root-of-trust features. While these measures increase the operational cost for cheat developers, tech analysts point out that firmware requirements do not eliminate cheating entirely, while introducing technical friction for legitimate PC players who discover configuration barriers only upon launch.
Countdown to Launch and Strategic Campaign Roadmap
The open beta period concludes on September 1, leaving a multi-week operational window for Infinity Ward to process player feedback regarding weapon balancing, movement mechanics, and server load balancing. Following the conclusion of multiplayer testing, Activision’s deployment schedule turns to campaign early access on October 16 for digital preorder holders, offering a single-player preview prior to the global release on October 23.
As cross-platform multiplayer becomes increasingly centralized, the open beta underscores how publisher security policies are shifting the entry requirements for PC gaming. Whether the enforcement of BIOS-level attestation successfully safeguards Modern Warfare 4’s online ecosystem will be fully tested when the title launches globally across all supported platforms in October.