[video=youtube]http://youtube.com/watch?v=Zri1c_If6Ic[/video]
THAT'S AN AWESOME SOFTWARE.
BTW IT'S NOT ONLY FOR TF2. IN THE VIDEO YOU CAN SEE DOTA 2, L4D2, HALF LIFE SERIES, PORTAL SERIES, AND SOME MORE.
IT'S DESIGNED FOR SOURCE GAMES, DEFINITELY VALVE SOURCE GAMES.
SO CSS IS OPEN TOO.