Fuel consumption rate
#1Battleships and Destroyers the fuel consumption rate is too high,especially destroyers,the fuel rate is so high its not feasable to move them once they are built.they are great for protection but but the fuel usage rate is too high to move them from where they were built unless you want to send like 4 large transports for every destroyer you want to move.the transports would be needed just to carry the fuel needed.I dont think a destroyer can carry enough fuel to go to the next sector over from the one its in