- "Full-auto submachine gun. Low recoil with high accuracy at range."
- — Description
The GKS appears in the zombie maps Voyage of Despair, IX, Blood of the Dead, and Classified, where it's available on the wall for 1300 points and as a weapon within the Mystery Box for 950 points. When upgraded via Pack-a-Punch Machine, it becomes the Ghoul Keeper's Subjugator with the magazine size increased to 52 rounds and its ammo reserve increased to 312.