User blog comment:SlashZero/E-6 Gauge Depletion Composition (Summer '14 AL/MI)/@comment-24116043-20140814142011/@comment-861160-20140814143820

2 CV won't guarantee submarine node, which is very important since you want it to reduce your ammo loss before the boss. Also, the other night battle node on the map (D) has stronger ASW due to echelon formation and the He-class and Ho-class flagship CLs. It also has two Ri-class Flagship CLs that cut in. A lot.

See this video for reference: http://www.hitbox.tv/video/212921?t=3h15m0s