@Tartan Bunny:
They're a kind of ship with a hull similar to a catamaran; which was TB's idea for all GDI ships (minimizing the impact caused by tiberian algae), also, I guess, all GDI ships will be equipped with sonic system for that purpose, though that would be mostly unimportant data on the unit's background information, that wouldn't affect gameplay itself.
@jadems:
Thanks, that's the goal that we're trying to achieve