Destroying Bases/Airports and Lost Units (Fearless Blue)

If you have multiple bases/airports, is it possible to select which one is destroyed? Recently I had three offensive airports, two in my country, one in a c3 and I destroyed one thinking it would be the extra one inside my base. At the same time, I was airlifting units to the airport in the c3. However, it destroyed the airport at the c3 and several thousand drones, a few hundred precision bombers and fighter planes, a few special forces, and at least a 1T in ammo suddenly disappeared. I checked the transport units but they had nothing else in them which leads to my second question, what happened?