They are fun to play with, but unrealistic attack esp when you get too close and throw a huge barrages at you and sink in one hit. seriously they need to be fixed and suppose to handle subs underwater.

I enjoy running around in bliz with my little destroyer, then get popped with HHs lol. It ruinin my game experience, most DD/FF have no chance in great battle hammered down by big guns.
They are useful by spotting submarines (if any) and if they can use AA covers for secondary, but no match for great battles and seem useless.