what it needs is more along the lines of thin rails, lots of pipes and wires
metal plates, steel racks and tabels with generators everywere. have a look:
http://www.slipperybrick.com/wp-content/uploads/2007/01/stargate-atlantis-railgun.jpghttp://www.kek.jp/photoarchive/accel/ps08M.jpgobviously you wont have a turret there, but look at the rest of the environtment, and look at the walls and look at all the little things you might have overlooked before. it really helps to find some good reference pictures when you doing level design or modeling.
