This mod takes place during the Black Mesa incident. You take on the role of a HECU Marine as you fight your way through different sections of the facility and carry out varied missions. *This is not a rebuild of any game, but features areas from Half-life, Blue Shift & Opposing force in the Half-Life fashion.
7/10. mod still has a few bugs. I even got stuck at map "op4c" because the next would just not load for some reason