User blog comment:Hayashi H/Max-efficiency Map-clear Formations/@comment-26486243-20151024134320

This enemy formation, by the way, is the one that forces the use of the Double Line formation in 4-4. If you use a composition incapable of dealing with it, your maximum will be restricted to A-rank, and the S-rank drop tier will be sealed. You can still complete the weekly quest, it just won't give as good a ship in the end.

This was the initial state of the fleet entering combat by the way, and was a parallel engagement. Ushio also missed once. If it was a head-on, your DDs are not allowed to miss even once, or else killing the SS is impossible without crit. The damage number displayed is Unryuu's 2nd bombing, so there was still one attack to spare before yasen.

This particular run gave a Zuikaku. Such AA modernisation, amaze.