You can't mod the game at all and still join servers. That goes for sound, crosshairs, blood, etc. Pretty stupid, really. I wanted to get rid of the annoying music at the end of a round but no, that would make me a hacker.
i got rid of the intro movies , and my game still works , i just renamed all the intro movies , but i would live some custom crosshairs , but i'll like without them rolleyes: