Talk:Events/@comment-110.148.117.69-20150806055257/@comment-135.23.225.8-20150806151135

It means you should have a fleet of, at least, 6CV, 4CVL, 3BBV, 6BB, 8CA, 4CAV, 6CL, 10DD and 4SS that are all lv70+, preferably Lv80+.

And, of course, plenty of top level gear, preferably upgraded, for your fleet.

Basically, just Kai2 every ship that has it, and level up all ships with strong stats. Then you should have a pretty decent fleet to tackle medium and hard mode.