Call of Duty: Modern Warfare 4 introduces Server Culling to combat wallhacks

Activision and Infinity Ward have announced several key features for the upcoming release of Call of Duty: Modern Warfare 4, scheduled for October 23, 2026. A major technical highlight is the introduction of ‘Server Culling’ as part of the RICOCHET Anti-Cheat system. This technology aims to combat wallhacks by using occlusion layers within maps to prevent the server from sending enemy location data to a player's device if the opponent is hidden behind obstacles.

On PC, the game—developed in collaboration with Beenox—will feature advanced technical optimizations including improved Field of View (FOV) with realistic lens effects, dynamic HDR10+, and a physical projectile system that follows the real trajectory of the gun barrel.

The game's setting involves a global conflict centered on the Korean Peninsula, featuring a campaign that spans locations such as New York, Paris, Mumbai, and Korea. The DMZ extraction mode will be set in a post-invasion environment near a damaged nuclear power plant. Modern Warfare 4 will be available on PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch 2.