So, the problem with naval battles starts with battleships and there is no problem with destroyers. So, the new classes will be: Fast Attack Craft, Patrol Boat and Destroyer. But, there're also two more classes that can be easily implemented in-game (In naval battles and as ground targets in air battles/0:
Corvette: A corvette is a ship larger than a patrol boat but smaller than a frigate.
Frigate: A frigate is a ship larger than a corvette but smaller than a destroyer.
And if there is a problem with battleships, there should be no problem with cruisers (Light Cruiser and Heavy Cruiser). (I have sunk a light cruiser with 1 torpedo by my torpedo bomber.)
I didn't find the right solution from the Internet.