Yeah. Wacky class sounds. There's nothing interesting to say about it to be honest. I made it because I got bored.
This mod replaces the "note" sounds in MvM's class selection screen with random quotes like "Bonk" or "Piss" It also makes the music more silent
Preview of the mod can be found here - http://www.youtube.com/watch?v=sSGKeE8Pn-Q