Simply put: Battleships are too good at everything. Why be a CA/CL when you could be a BB and do everything they can do, but better with more guns, more damage, and more armor.
In Navyfield 1, this was acceptable, Battleships were the endgame, no matter what CA/CL you picked you would eventually end up at the choice for a BB (or CV). NavyField 2, however, has endgame CA and CL. These ships need a role in these virtual seas.
Here are my proposed changes and general directions, if we are going to continue with having endgame CA/CL
Battleships
Landing Forces Removed
Accuracy Reduced: The ability for a New Mexico or Ise to land 9+ of their 12 shell salvo at a significant distance makes playing anything less than a battleship pointless.
Reloading Times Increased: CA 8-9" guns reload times run in the 9second range, BB reload times should start at 17 seconds
Main Guns limited to 10* mininum: This adds a clear weakness to battleships, if you get close they cant use their main guns on you, but they still have their secondary weapons and armor/hp
Armor and HP Increased: With the nerfs to their main guns, the increase in Armor values and HP amounts should keep a battleship's presence as a floating fortress
Acceleration and Decceleration Increased: BB should be slow to react
Turning Radius Increased
Heavy Cruisers
Accuracy Increased
Bridge LOS Increased: Range Should be Second place to CL
Heavy Cruisers are intended to be "Light-battleships", Sacraficing armor and weapons for speed, reloading and accuracy
Light Cruisers
Depth Charges added: Currently CL lack any way to combat the subs they detect
Sonar Range Increased: with the increase in recharge time, CL should act as the "spotters", letting their team know there is a sub approaching, but they wont have the sonar up enough to know where it is at all times
Sonar Recharge Time Increased
Bridge LOS Increased: CL should have the longest sight range, cementing their role as spotters for the fleet
Light Cruisers should be "Large Destroyers", Sacraficing the speed and size of a Destroyer for larger guns and more armor
Destroyers
Bridge LOS Increased: DD should have matched sight with CA, allowing them to pick when and who to fight
Sonar Range Reduced: DD should have short range, fast recharging sonar allowing them to be the most effective SS hunters. However SS that can effectively manauver around DD will be practically invisible to the DD
Sonar Recharge Time Increased
*several edits: what is the point of having all these formatting options if NONE OF THEM WORK IN THE ACTUAL POST*