Like the original game, here you see the events unfold before your eyes. The aliens are running around causing chaos in the facility and you have been sent there to try and get a handle on the situation. I found this to be a really clever idea and in Half-Life: Opposing Force you play as a marine called, Adrian Sheppard.
In this game, you do not play as Gordon Freeman, but you are experiencing the same trouble he went through, but from a different perspective.
Return To The Black Mesa Research Facility
