You are a security guard. You are responsible for making sure that things go smoothly in the station. Traditionally, this is a cushy job -- throw out the bums, deal with the occasional complaint, make sure the kids don't make trouble. But lately it's been a pain in the ass: what with all the terror scares, you're responsible for making sure nothing "bad" happens. And today is the pits. You've been given instructions to search every third passenger through the turnstiles, because there have been vague warnings about an imminent attack of some kind. You think it's bullshit, but they don't pay you to think.
Just to make it worse, everyone's been getting in your face about the searches, and refusing to understand that you're just a guy doing your job. Well, if they don't want to ride the T, they don't have to. But you're not letting them through unless they play by the rules.
A gun (Gun) -- An intimidating-looking Big Black Gun. You don't want to be looking into the barrel of this thing.
A badge (Badge) -- A shiny brass-colored badge. Looks very much like a police badge, but actually says "MBTA Security" if you look carefully.