Replica Soldier's Voice from Fear now replaces for Agent Wilkes similar to my Samuel Avalon Voice Pack this Voice Pack only replaces for Agent Wilkes would not replace default voices like malevoiceone and malevoicetwo.
To Install Just Drag and Drop and Replace the files onto you're Killing Floor Folder and boom you're done enjoy!
(Credits)
Vekktor - Extracted The Voices and The Idea behind of this Mod.
Red Razer - Assemble The Voice in KF SDK
Rheinwiesenlager - Coding and Make it work In-Game