Opposing Force is a modification of Sierra's hit shooter game, Half-Life.
This category is for sites in English for Opposing Force.
Sites in other languages must be submitted in the appropriate World subcategory.
All submission descriptions must be free from self-aggrandizing hype. Any such language will be either immediately removed or your submission will be deleted.
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- Planet Half-Life: Opposing Force Walkthrough, tips, downloads as well as strategies for both the single player and online multiplayer version.