Talk:Summer 2015 Event/@comment-119.244.254.86-20150826051545/@comment-139.216.148.160-20150826054014

E5-7 are technically Extra Operations map which are like your typical normal Extra Operations maps (1-5,2-5 etc.) where it is technically not "compulsory" to sortie but they come with their own rewards. (If you want to get even more technical, this whole event is optional.) You're just selectively interpreting things wrongly

To look at it from another perspective. How would you participate in "Operation FS" (Title of E7) without "Advancing to FS" (Title of E6)?