In no way shall I be responsible for anyone screwing up their game by using these files. If you don't know what you're doing, don't try it. If you do know, be sure and back up your mp_pak0.pk3 b
Theres one floating about thats similar, but this one works, and has more functions - mainly cuz I use it myself for screenshotting so I wrote what I needed.
Simply put it in your wolfeinstien/main and then follow either choice a) or b).