User blog comment:Admiral Mikado/Extra Operations for Dummies: 3-5/@comment-24930367-20150727133708

Mikado.

> Node G: The pre-final pattern isn't that bad because the ships are in Diamond formation, which significantly nerfs their damage and torpedo accuracy. <

I think it's either line ahead or double line, never see the pre-final with diamond, unless they did some ninja update. .-.