Talk:Combat/@comment-26165233-20150305163805/@comment-861160-20150305174258

It seems to be a defensive formation for submarine fleets, which is to say we see the NPC fleets and PvP fleets use it often with submarines with the only plausible explanation being that it nerfs their torpedo damage without nerfing it as much as diamond or line abreast.

Also regarding night battle: http://kankoregouchin.blog.fc2.com/blog-entry-38.html http://kankoregouchin.blog.fc2.com/blog-entry-37.html

Formation has no verified effects on damage taken, critical rate, double attack failure rate, cut-in rate, or evasion rate. But, choosing echelon over double line or line ahead will nerf your accuracy.