The whole airport is not real. There is a big area flattened. The airport has a slopped runway from 103 to 73 meters. In sim it is set to 79m. Some of the military parkings are at 106m IRL.  The mesh was edited. So yes there is now this hill. I will look if I can do something. But it will never be like in reality. In an other post I have the original mesh like in reality. Combine it with the aerial image and switch of the other files, then you get an idea how it looks in reality.