How about altering the hangar objects when resources are destroyed? If fuel tanks aren't available, show a crumpled bit of junk where the fuel tank was. If only 50% fuel is avail, show only 2 oil barrels. For the percentage of the base that is wrecked, show the hangar with various stages of damage. If fighters aren't available, trying to select a fighter will show you a collapsed hangar sitting on your plane.
Make it intuitive and part of the game, not something the mystical arena dungeon master text bot has to tell you
