Create a realistic Hangar 3D model for Scene 26 and make a movement of composition of aircrafts more realistic

I have a scene of a project (scene 26): [login to view URL] In this scene, I need a realistic Hangar 3D model in it because the hangar I did sucks. I have a scene of a project(scene 34): [login to view URL] In this scene, I need that a movement of the aircrafts be more realistic, and the fire that goes out from the aircraft2(drone) be real too.