ZOMG shit airplanes.
This creation is boooring.

I have a suggestion.

reserve one of the hangers for ammo such as bombs, missiles, that kind of stuff. u also need vehicles. such as a firetruck, a refueling truck, and an ammo truck. have some people running around, cos in my opinion, that airport looks very bored and lazy. also, why do you need paratroopers? may paratroopers walking into the plane, but why drop from it over the airport? is it some kind of exercise? u need a generator for the runway lights and the control tower. just put some wires or walls under the ground. u also need to think of air defense systems such as an AA gun, or a missile launcher. get more buildings too.

looking back, that was a lot....

hope this helps you.