Half-Life: Opposing Force Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. …

Opposing Force portrays the events of Half-Life from the perspective of a U.S. Marine, one of the enemy characters in the original, assigned to the Hazardous Environment Combat Unit (HECU).

Apr 11, 2014 · Need help getting through Gearbox Software's official expansion pack for Half-Life? We're here for you! Following is a walkthrough to help get you through the entire game, and some …

Jan 3, 2026 · Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game.

Dec 26, 2025 · Half-Life: Opposing Force is the first official expansion pack for Half-Life. It puts the player into the role of Cpl. Adrian Shephard, one of the military specialists of the Hazardous …

In Half-Life: Opposing Force, Gearbox redefined what an action game expansion should be. Named PC Game of the Year by the Academy of Interactive Arts and Sciences, Opposing Force offers an …

Half-Life: Opposing Force is a critically acclaimed expansion pack for Half-Life, developed by Gearbox Software and released by Valve Software on November 19, 1999. The expansion's single-player …

This article describes the Half-Life: Opposing Force storyline, chapter by chapter. The story of Opposing Force interweaves with the events of Half-Life, so that the player catches a glimpse of …

Feb 4, 2026 · Opposing Force is the first official expansion for Half-Life, developed by Gearbox Software under the supervision of the original creator Valve. The storyline of the base game is …

Do you think Opposing Force is canon and Valve can bring him back in the next Half-Life game? I would like Valve to bring him back. He's one of my favourite characters!