Half-Life: Counter-Strike - PC This game combines all the elements of the Half-Life online universe, with new single and multiplaye Start things off with Counter-Strike -- the intense multiplayer gaming experience where you can be e In Team Fortress, you can select new character classes -- Medic, Sniper, Engineer and 6 other import Opposing Force Multiplayer brings in new maps like Black Mesa, plus new weapons and player character Also includes exciting new game modes and new firearms for a more complete gaming experience!