Talk:Spring 2015 Event/@comment-24702213-20150427012738

春イベ【発令！第十一号作戦】主作戦(前段作戦)を完全攻略した提督方は、続く『拡張作戦(後段作戦)』に参加することも可能です. ※拡張作戦は【二つの作戦海域】より構成されます. ※拡張作戦：最終作戦海域では、甲・乙・丙作戦共に【全ての戦力を投入することが可能】となります

This tweet confuses me. First, the initial part consists of only 4 maps. If this latter part unlocks after that then this should be E-5 and possibly E-6. But since E-5 bans ships from E-3 and E-4, why the 全ての戦力を投入することが可能? Unless this part contains 2 maps and that only applies to E-6, or there's E-5 that they didn't mention anywhere and these 1 or 2 are E-6 and E-7.