(( Assuming Shed doesn't care to save the life of the guy he just shot ... ))
The gunfire (gunman #1's weapon was not silenced) certainly got everyone's attention! As the team makes it's way toward the utility stairs/elevator they hear shouts and running feet echo thru the halls, and occasionally cross paths with a civilian who takes one look and runs in the opposite direction. No one they've run into, so far, seems interested in trying to stop them.
They finally make their way to the stairs, and remember that on the ground floor (loading dock) there was a crap game going on. Now what?
(( As I said, I'm fine, the only "casualty" was my poor, overloaded, bookcase. ))