Star Wars - The Nameless
The large asteroid has a small hanger on the outside with no protection from the vacuum of space.
There are two entrances into the cave. The more obvious one leads to a series of winding caves with several dead ends leading to wrecked transports and mynock caves. The other is better hidden in a crevasse, and is a straight shot to the large pressure curtain protected cave and make shift command center. Large enough to hold two freighters and a fighter comfortably with a common area arranged between.