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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 be...
Opposing Force opens with Shephard riding on a V-22 Osprey with his squad. His squad discuss their deployment, somewhat irritated that they have not been told what they are being deployed for. However, as they are nearing their Landing Zone at Black Mesa, airborne alien creatures attack the Osprey formation, causing Shephard's Osprey to crash land. Shephard regains consciousness in a Black Mesa medical bay, tended to by the science team, learning that the Marines are being steadily beaten by the alien forces from Xen and orders have come through to pull out. Consequently, Shephard departs to r...
Also known as: HL: OPFOR, HL: OP4, OP4, OPFOR, hl.exe, Half Life: Opposing Force, HL: Opposing Force, HL:OF
United States
United States
Half-Life: Opposing Force was released on November 10, 1999.
Half-Life: Opposing Force takes about 6 hours for the main story, or around 5 hours for full completion.
Half-Life: Opposing Force is available on Linux, PC (Microsoft Windows), Mac.
Yes — Half-Life: Opposing Force supports Multiplayer.
Half-Life: Opposing Force was developed by Gearbox Software and published by Valve.
Half-Life: Opposing Force is rated M by ESRB.