6th Desdiv (2 main green gun + torpedo) + Yahagi ( 15.2 + torpedo + recon plane) + Mogami kai (20.3 + 2X Zuiun + torpedos)
Don't look like there's a check at loS
Sendai at boss node (S rank for two nodes)
Hard mode. That Kikuzuki power. Clear in 5 kills +74 damage, probably would have just been 5 kills if my fleet hadn't been too heavily damaged by the node B fleet on the first scouting sortie. Ooyodo the only notable rare drop.
Easy using CL, 2DD, 1CVL, 1CV, 1CA. 3 boss kills no repairs for chuuha or taiha so far (ship lvl range 25 to 40). Pretty effective. This were test runs, gonna try medium with same formation but stronger ships.
Had difficulties with 2CL4DD (either forced retreats or no boss kills) as I'm using my expedition fleet. Slowly chipped away at the boss health bar without any kills till I decided to try out Kikuzuki.
Additionally replaced a CL with a CAV for AS from the seaplane bombers and they work pretty well. The increased accuracy/evasion gives my destroyers so much more survivability. Before, I could have 2 taihas at the first node simply because of the closing torps or multiple chuuhas. Now its chuuha at most. Not to mention I got S rank on the boss node for every sortie after switching to this fleet composition.
1CL 2DD 2AV 1CA is utter and complete anal rape for boss even with one of those DDs being a lvl1 Kikuzuki. Sadly there's a limit on how much of the boss's health you can take down in one sortie. Going to try this for last hit and will report! (Medium)
EDIT: Added a screen of two sorties after this post.