Sergeant Daniels pulled out the parchment scrolls detailing the configuration of Attica Station, and carefully analyzed them.  "The station's passageways are 3 meters wide by 4 meters tall, with 1 meter thick bulkheads.  The main arterial passageways, including the one to the vault, are 5 meters wide.  The vault access corridor is 30 meters long, and has two built in raised strongpoints for defenders to fire from.  The strongpoints are essentially castle towers, with built in power sources for heavy weapons."  Daniels reported, looking down the wall of text the book confronted him with.