in TA i found another use for cargo hulls... with the new components using a cargo hull adding weapons, shields, reinforced hull points(new +5hps), battle command module(new +25% to attack for first round), and warp field bubbles(new +1,2,3 to fleet speed depending on researched tech) to create my Battle command ship. its not a potent attack ship but it does it job coordinating my small hulled ships into a deadly attack fleet. (just an example playing as the terrans at war with the drengin whom has photon torpedos II a much stronger than my plasma 3, but with logistics at 16 and drengin only at 9, my fleets have been rolling over the drengin since the addition of my Battle Command Ships to the fleets, i win 90% of battles(not untouched though mind you i usally have to replace the battle command ship after 2 battles but the other ships hold up much longer as long as the battle command ship is replaced quickly!