Help with changing weapons sounds in brutal doom

[Kev The Galaxybender]

I'm trying to replace the assault rifle sound with a different one. When I replace the sound file, it changes but the sound if muffed. but if I use the new sound with a different file, like the pistol file, the sound works fine and sounds normal. 

 

please close, I figured it out

Edited September 10, 2017 by Toph Bei Fong