So knowing this, as an Imperial player I would field huge ships of my own, one with guns that can obliterate the transports very easily.
Why? If the imperial huge ship is like the corvette then it won't have enough energy to use its guns, and you'll do more damage with a horde of conventional ships.
Consequently, a Rebel player knowing this would bring his corvette to fight the huge Imperial ship at range.
Or they'd just bring some HLC b-wings, which do more damage for the same points as a corvette and can shoot more than once every other turn.

