When a squad of rebels find themselves trapped under the ruins of City 17, they believed that their rescue would be a simple matter. A skirmish with an Overwatch scouting party, however, quickly escalates into a major battle amongst the debris, with great consequence.
A little area about half the distance from the pit in which the game starts to the surface.
Hmm, old subway station? *In Borat voice* Mmyezz veri nais!
Subway station? It's just a corridor, a broken one, but a corridor nonetheless.