Talk:Haruna/@comment-26371959-20150505124146/@comment-26360164-20150505125105

For most BBs, you would want 2 main (red) guns plus the recon plane for day time double attack, plus a wild card for the fourth slot if available (usually another recon plane, radar, AP shell or sanshiki). A secondary gun turns it into a cut-in set up, which has low damage compared to double attack and low activation rate since most BBs do not have the luck to trigger it.

For Haruna Kai Ni, however, she has 41 luck which is substantial for a BB and can do a triple main (red) gun plus recon plane set up to deal high damage to high health and high armour bosses.