A half Life1 Opposing Force mod. You're Corporal Shepard. A Soldier which arrives at Black Mesa in an alternate reality. Another Experiment went wrong and your mission: To find out what happened in Black Mesa and rescue the trapped personnel in it.
Wonder what's that guy in the suit doing here?
Map by Neclipse.
Gman?
g-man...
Nice! Looks very Half-Life:) Now, what I want is a train tutorial:P How do you create trains really? I have done so many attempts, but I can't get it to work.