Opposing Force 2: Lost is a mod for Half-Life 2, created by NervenHölle-Team,
Description (in authors’s own words)
Opposing Force 2 is an ambitious Half-Life 2 modification that focuses on making an unnofficial sequel to Gearbox Software's award winning game: Opposing Force. As many gamers think of Opposing Force as one of the greatest FPS games ever, modders making a sequel is an obvious possibility. Although many have tried and failed this project has come further than anyone else's and seems to have a bright future. The game takes place in the Seven Hours War aftermath. Fighting against blood shedding synths and frightening aliens, Adrian Shephard has to struggle his way with his fellow comrades from the Phoenix Command, with the main objective of stopping the construction of a Combine Citadel.
Extract and then copy „of2” folder into „... steam/steamapps/sourcemods” and restart Steam.
Report problems with download to firstname.lastname@example.org