You may have a point. It's possible, though unlikely, that they:
entered the restaurant.
aimed and fired upon their targets.
set up their M4 assault rifles
cleared the parking lot of the multiple armed threats there
got out of their vehicles
Yeppers, could have happened that way...
Touché!
To paraphrase an old adage: Every posting should have a factual comment and a humororous comment and, we should be able to tell the difference between them!