It gets in game and seems somewhat playable if you do the source change unknownbrackets mentions. Anyway I was wondering what's wrong with the character models. They look like swiss cheese in game. Could also be my video drivers I suppose, but I have no way of upgrading them.
http://oi42.tinypic.com/29cnndz.jpg
http://oi42.tinypic.com/29cnndz.jpg

