Half lifers rejoice i found a great mod while looking for something else to play, its called battle grounds and its a revolutionary war mod for half life (you must have half-life to use this mod) its actually very cool having to relaod after every shot and blindly charging into a cannon to defend your country..or country thats suceeding from you files can be found here
http://www.bgmod.com/
my name is dansim in teh game
try it out and post other great mods for the games that maybe arent taht popular or well heard of