That's because the ground controller are on a different frequency. I've worked on the airfield here, Oceana and Cecil Field, all movement on the airfield is controlled by the tower. You have to call for permission to get on the field, you have to call for permission to cross any runway, you have to call when you are clear of the airfield. The ground controllers keep track of all vehicles that are on the airfield.
I'm not being weird, I just think everyone is over reacting because the base is cutting down some eff'ing trees.
It's O R D N A N C E, ordinance is a law/regulation, ORDNANCE is explosives.
Have you seen 1.1 ordnance, no, 1.1 is the bombs/high explosive stuff. Also, have you seen the stuff being escorted off base, it's only escorted on base, and again, it's not high explosive.