User blog comment:SlashZero/Spring 2016 E-7 Hard Pre-final & Boss Farming Composition/@comment-36.81.10.0-20160521100532/@comment-861160-20160521103850

Every CA/CAV should have a Type 3 Shell, and any battleships in your escort fleet. They should all hit the 300 night battle cap with those setups.

You should have a fighter in your third base. If not, you may not get air superiority/supremacy and your damage will drop as a result.