Half-Life: Opposing Force: Unfinished Project Exploratory Walkthrough @Etalikor

Half-Life: Opposing Force: Unfinished Project Exploratory Walkthrough @Etalikor

Uploaded March 2024 | Updated September 2026, 2 weeks ago

The mod was created by @sandbox2007.
Mod download, info and ratings:
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Half-Life: Opposing Force: Unfinished Project Exploratory Walkthrough