Board Thread:Fleet's Prepared-ness/@comment-26864156-20150807053612/@comment-26224833-20150807155057

well your ships good enough for Easy I think, maybe it's possible to go medium on some maps without ships lock

IP-san and Stremespoats already told you what you need to do, but if I want to emphasize something, assuming you go easy all the way... It will be your CAV, I think you should level her more, or at least, modernize her, in case you need her service in the event for branching rules

And yeah, you still lacking the Reppus, Torpedo Bombers as well, consider do dialy development for those two, if you want to spam it, do it moderately... Covering up your lack of Reppus with AACI also an option, but... you didn't seems to have ship with good AA stat, with that amount of resources, you can power level your Maya to Kai Ni, and full modernize her, it's still possible I believe, you still have quite some times left if you not thinking of trying to be frontliner

Regarding your question about what the different between difficulties, yeah, it's the enemies vessel and the rewards that you get... Also, RNG-sama tend to be more harsh the harder the difficulties is, with addition of ships locking thing (for medium above)