This facility is on the Lackland Training Annex. A couple of things to note. In GM there are way too many cars to account for the size of the buildings. It is very secure with lights and fence. What's with the lines on the ground?
Info Requested, Military - Air Force
By: kjfitz
Also, in the Live pics, note the parking lot full of fighter aircraft below and left, probably for practice loading and unloading, as there doesn't seem to be access to an air field...
The fact that there are a number of privately owned vehicles inside the perimeter argues against it being a highly secure facility.