Named Game of the Year by over 50 publications, Valve's début title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Description
This is the latest and only version so far of "Opposing Force Coop".
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ValvePublisher
Sierra EntertainmentEngine
GoldSrcContact
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Half-Life
First Person Shooter
Half-Life: Opposing Force
First Person Shooter
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GoldSrc
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Sierra Entertainment
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Valve
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Super Duper
is this a good mod
Very good mod, need fix.
This is a very great mod, it allows your friends from steam to play with you, its cool :P
Good mod.
Hi Good Mod :D very cool :P