A great addition to one of FPS's finest.

User Rating: 8.5 | Half-Life: Opposing Force PC
If you want to fill in any of the gaps left in the original Half-Life, Opposing Force is most certainly a game for you. In Opposing Force you take the role of Adrian Shephard a Marine in the Hazard Environment Containment Unit, the force sent to Black Mesa Research Facility to "clean up" the situation there.

However complications arise as soon as Shephard enters the area and his only mission is to survive and bring out as many people as he can. Despite a few inconsistencies with the original game Opposing Force adds quite a bit to the Half-Life universe and the events that transpired at Black Mesa.

Opposing Force handles just as well as the first and the addition of a few new weapons only manages to add to the games appeal, one great addition is the barnacle gun which functions as a grappling hook and adds a new and welcome element to the gameplay.
Shephard turns out to be just as good a protagonist as Freeman was and is easy to connect to. And all in all, Opposing Force is one of the best expansions to any game you'll play in a long time.