Read Melgar's new part yesterday, then had an interesting thought at work: The Combine may come to the conclusion that GDI's BAs were also using a version of the leash system. BT computing tends strongly towards big mainframes with (potentially) lots of linked terminals. Obviously rolleyes: ) , GDI installed numerous (presumably well armored) terminals through out Port Krin to act as leash nodes. When defending an urban environment, this allows the BA to deploy with great flexibility, though it does restrict offensive tactics. This conclusion will also reasure the Dracs that some minor Periphery state hasn't pulled off something that the Dragon cannot (autonomous PA/BA), and the CSN only discovered it first because the 'mighty Combine' had not yet turned it's efforts to PA/BA. Thus they can tell themselves they are still superior.