I believe that the best choice for CV is not a nerf but to get a normal battle mode that you can choose to play with or without CVs . And you get a small nerf in xp and silver if you choose to play with no CV! To make it more fair ! Or something like that!

Okay, with Eagle it certainly isn't as good as Hakuryu, but it has two gimmicks that it is fantastic at. First, it is one of the best cv snipers in the entire game, and even competes with MVR, second, the ability to cross drop with the jet is insane and literally makes it impossible to dodge the torpedoes.