I had a Marine friend who did several parachute jumps over Elgin. He said there were hangars scattered out in the boonies away from the main base. During the day they were closed up and almost looked abandoned. At night they were lit up and all kinds of activity going on. One time going home from Mexico Beach, Florida to Mobile, Alabama traffic was blocked for several minutes on Hwy. 98 by Air Force MPs outside of Tyndall AF Base. They would not tell us why but the only thing it could have been was an aircraft they didn’t want anyone to see. As I recall we were held up for about 15 minutes. We never heard anything.
That reminds me of the Son Tay Prison Camp raid. They would build a replica of it every day, then take it down while a Russian Satellite passed over.
Colonel Bull Simons who led the raid lived not far from us.