Overkill+ is a host sided mutator for Overkill 145+ difficulty that brings over Overkill difficulty assault delay values and spawngroups (meaning the return of Light SWATs and FBI units outside of Heat Street and scripted spawns).

To enable the mutator, press Enter or click on the difficulty selection tab.

Challenge Progression and Stat Tracking is disabled while the mutator is active.

Edit: Apparently everyone in the lobby needs to have it