The steaminstall_opfor.exe file you have requested: Official Releases / Steam / Opposing Force Steam Installer - 289.81mb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:

Compliments of VALVe, this Steam Installer includes all the files you'll need to play Opposing Force.Steam is also a game browser, updater, and buddy messenger all wrapped into one fantastic package with other perks included as well as some yet to come.

We recommend you return to the download list and browse the links from there. If the problem persists, contact us with the details.

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