Well, I'm not sure what happened, but for some reason there's pieces of code from Oldskool Amp'd in the Reavers. So, in order to run the mod you need Oldskool Amp'd installed. Don't ask me why, I dunno-it's a WTF for me as well :/ So, in order to use the Muty you need Oldskool Amp'd installed. Get it here: Usaar33.com
My apologies for the inconvenience
Regards, Zacman.