[Taylor]

Clever teams will be able to handle the defenses quickly and effectively. The biggest obstacle I see with the defenses is their physical size as visibility blockers.
I believe at early stages of the event, many teams will ignore the tallest elements (Drawbridge, Portcullis) to aid visibility. As strategies get more refined, alliances will then artfully place the Drawbridge and Portcullis in the line-of-sight from their own tower to the opposing alliance's perceived most powerful member's driver station.