As the game begins, Barney Calhoun rides the tram from the Area 8 Topside Dormitories on the surface, into the underground sector of the Black Mesa Research Facility. Along the way many new details about Black Mesa are revealed; Calhoun passes a laundromat and several fast food outlets, suggesting that the facility is very self-sufficient and probably houses many of its workers. While Calhoun is locked outside the door to Area 3 Security Facilities, he is passed by Gordon Freeman riding in another tram heading towards Sector C in a scene that mirrors one in the original game, in which Gordon Freeman sees a guard locked out of a door on the inside of a tunnel.
