World 3

Tips

 * In order to get to the Boss Node H, you will need to have a fleet of 6 destroyers only.
 * All destroyers should be remodeled, equipped with torpedoes, and have their stats maxed (armor and torpedo).
 * Sparkle your DD before every try if you aren't already, it might make far more of an impact than turbines do.
 * Equip Emergency Repair (応急修理要員) if you don't feel confident.
 * Use line abreast formation (単横) to avoid damage on your way and do night battle to take out the boss if your firepower is not enough for the day battle.
 * You'll need to be patient, it might take 1 try or dozens of tries to clear 3-2.
 * 3-2-A is a great place to level up using the following fleet composition:
 * Flagship: whatever ship you want to level up.
 * If you have submarine: 「CV/CVLx2 (Torpedo Bomber) CLTx1-2 (Type A Ko-hyoteki) SSx1」. Enemies will prioritize attacking your submarine whenever possible since all of them can attack a submarine. You will therefore incur minimum cost to resources, time (Submarines are cheap and quick to repair) and risk while gaining 558 EXP per battle for flagship and 744 EXP for MVP.
 * If you have no submarine: 「CV/CVLx2 (Torpedo Bomber) CLTx1-2 (Type A Ko-hyoteki) BBx1」. CV will take out 4-5 ships while BB takes out the remaining ships. With that composition, you can level 2 DD at the same time. Not as resource efficient as the first one, but reasonable if you do not have a submarine that can evade.

World 3-3:  アルフォンシーノ方面
Tips:

1. Fleet composition requires 2 CV/CVL to make it to the boss node.