Talk:Combat/@comment-25779449-20141201214555

Regarding the formations for night battle, line abreast was tested to have a higher evasion  (+10%)  from enemy cut-in  and/ or double attack. The trade off is lower accuracy (-20%) for your fleet.

Line ahead is being compared as the standard.

Source: http://kankoregouchin.blog.fc2.com/blog-entry-37.html