Gamespot heeft een game guide gemaakt van Opposing Force.

Zit je vast of wil je gewoon wat makkelijke hintjes weten? Check het hier!Have you defeated Opposing Force but want to play through the entire game within the comfort of god mode or the freedom of noclip mode? Or maybe you're horribly stuck and out of ammunition just outside a warehouse full of Black Operatives. If you fall into either category, then this section is for you. Below you'll find a list of cheat codes for Half-Life: Opposing Force as well as some "Easter eggs," or areas and situations in the game you might have missed during your first play through.