Call of Duty: Modern Warfare 4 arrives on October 23, bringing a new server-side anti-cheat technology called Server Culling to target wallhacks, alongside detailed PC system requirements and extensive platform enhancements, according to recent publisher announcements.
Server Culling Anti-Cheat Technology Targets Wallhacks
The Call of Duty series introduces a radical countermeasure against cheaters in its latest installment. Traditional multiplayer first-person shooters send opponent position data to player machines even when enemies remain behind walls or cover, allowing unauthorized software to instantly render them. Server Culling relocates visibility calculations to the server side. Using unique occlusion layers of maps, the server prevents sending hidden player coordinates to the client, rendering map-hack software ineffective.
Activision confirmed that the technology operates on all launch maps on day one, including DMZ and Combat Outpost modes, while Warzone and newer multiplayer maps receive the update starting with Season 1. While Server Culling specifically blocks vision-based cheats, other RICOCHET modules continue handling aimbots and alternative exploits. Modern Warfare 4 launches on PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch 2.
Publishers release final PC specifications for upcoming shooter
Publishers released the final PC specifications for the upcoming shooter, outlining hardware needs across three distinct performance tiers.
Minimum specifications demand a Windows 10 64-bit operating system, an AMD Ryzen 5 1400 or Intel Core i5-6600 processor, 8 GB of RAM, and an AMD Radeon RX 470, NVIDIA GeForce GTX 970 or 1060, or Intel Arc A580 graphics card with 3 GB of VRAM. Recommended hardware steps up to Windows 11, an AMD Ryzen 5 3600 or Intel Core i7-8700K CPU, 16 GB of RAM, and an AMD Radeon RX 6600 XT, NVIDIA GeForce RTX 3060 Ti, or Intel Arc B580 with 8 GB of VRAM.

Graphics Options and Technical Features on PC
PlayDome reported that the PC version features over 800 customisation options, 4K resolution, HDR10+ support, and ray tracing across all game modes. The game includes support for NVIDIA DLSS 4.5, AMD FSR RedStone, and Intel XeSS 3. Modern Warfare 4 removes the requirement to restart the game following an update, introduces an in-game benchmark tool, and adopts the sub-frame mouse polling feature from Call of Duty: Black Ops 7 to poll mouse movement independently of the framerate.
Pre-loads for the PC version begin on October 15, while players who pre-order the title gain access to the campaign starting on October 16 ahead of the official launch date.
Frequently Asked Questions About Modern Warfare 4
When does Call of Duty: Modern Warfare 4 officially release?
The game launches globally on October 23 for PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch 2, with pre-order campaigns starting on October 16.
How does Server Culling prevent wallhacks in multiplayer?
Server Culling shifts visibility calculations to the server side, meaning the game server stops transmitting coordinate data for players hidden behind walls or cover so that client-side cheat software cannot display them.

What are the storage requirements for the PC version?
All performance tiers require 115 GB of available storage space, and an SSD is mandatory for installation across minimum, recommended, and ray tracing configurations.
Which upscaling technologies does the PC version support?
The PC release supports NVIDIA DLSS 4.5, AMD FSR RedStone, and Intel XeSS 3 alongside enhanced field of view options and over 800 customisation settings.
Activision scheduled the global release of Call of Duty: Modern Warfare 4 across four major platforms following previous franchise entries like Call of Duty: Black Ops 7.
Worth a look