User blog comment:Ameno Miragu/Lessons from Spring E-4/@comment-99.65.177.189-20140510033149/@comment-24430017-20140510065232

1-5:

Use to get low level DD/CL to  Kai  with level 1 ships to tank. (Also gives sparkles so i rotate them and send them on expeditions).

3-2A (higher level):

BB (flag), 2 CL, 2 DD, Maruyu

CV(flag, blues), 1CL, 2DD, Maruyu, lvl 1 BB (to be scrapped)

Mainly for leveling BB/CV, although the DD you rotate in can get quite a bit of xp. You need higher level DD, CL (esp for BB method) so they kill enemy ships. If you need, you could rotate in a CAV to give them extra firepower and double attack. You should be able to get your BB/CV to 80+ on 3-2 w/o issue.

4-1: No fatigue, but add a few buckets. A pretty good place to level DD, CL at lower level since mostly easy nodes except for BB trap nodes.

5-4: a lot higher base XP

I think you just need more patience as you are still really low level if your ships are at 30. You aren't really ready to tackle the higher xp nodes. 4-1 would be my recommendation.