Welcome to Killing Floor (UT2004) Klub. It's a place for Killing Floor (2.50-3.0) can find anything related to the game. From maps and mods, to patches and updates.
The file is a WIP version of my Killing Floor mod MUTATOR.
Here is a complete version of the KFMod20 MUTATOR, but is still work in progress. It lets you get the new PERK, ChemBug and lets you acquire the new weapon, ChemicalThrower to use against the specimens.