Half-Life: Opposing Force1999
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. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.
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Released: 1999-11-10
Developer: Gearbox Software
Publisher: Sierra Entertainment, Valve
Platforms: Linux, PC (Microsoft Windows), Mac
See all release dates (4)
PC (Microsoft Windows) (Other): Nov 10, 1999
PC (Microsoft Windows) (Other): Nov 15, 1999
Linux (Other): Jul 31, 2013
Mac (Other): Jul 31, 2013
Also known as: hl.exe, OP4, OPFOR, HL: OPFOR, HL: OP4
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. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.
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. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.
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