From IGN · Michael Cripe · · 1m 10s
Call of Duty Modern Warfare 4 Ends Wallhacks
Activision's new server culling system could end wallhacks in Call of Duty: Modern Warfare 4.
In brief
Activision's new server culling system could end wallhacks in Call of Duty: Modern Warfare 4. Activision's server culling system in Call of Duty: Modern Warfare 4 prevents wallhacks by limiting server data to what players see. Originally reported by IGN.
Wallhacks in Call of Duty
Wallhacks let cheaters see opponents through walls, ruining matches by giving unfair advantages.
“For cheat developers, this creates a major new obstacle.”
Activision's New System
Activision and Infinity Ward introduced server culling to combat wallhacks by limiting server data to what players see.
How Server Culling Works
Server culling uses occlusion layers to hide player locations behind walls, preventing wallhackers from seeing opponents.
Impact on Cheaters
Cheat developers face a major obstacle as server culling prevents them from revealing opponent locations through walls.
“For cheat developers, this creates a major new obstacle.”
Launch Details
Call of Duty: Modern Warfare 4 launches on October 23, 2026, for PC, Nintendo Switch 2, PlayStation 5, and Xbox Series X/S.
Future Updates
Server culling will improve Warzone, DMZ, and future updates while working with existing anti-cheat systems.
What Happens Next
Activision expects server culling to disturb the cheat marketplace but will continue improving anti-cheat measures.
The bottom line
Activision's server culling system in Call of Duty: Modern Warfare 4 prevents wallhacks by limiting server data to what players see.
