Aye D'No (evil)
Up, down, around, and around. And around. Lots of staircases, lots of tight passageways, but plenty of open space, as well. The textures are cleaner here than in the Infinity version, but mostly it's a great place to blow people up. Plenty of troopers, if you wanna play it solo.
Levels in map "Aye D'No v1.2":
Aye D'No