Board Thread:Event Official Threads/@comment-26091666-20160430054725/@comment-26825520-20160509152151

Vcharng wrote:

It's from official announcement, "the effectiveness of any aerial attack against E6 and E7 boss has been adjusted, they are now highly effective against these nodes" or something like that after the 5 May mini-update.

And by "adjust", they mean from <100 to around 2000 damage (dealt by some Japanese player on E6 hard boss)

Currently in Japanese discussions, it is the concesus that the main output is the responsibility of carrier support fleet and land-based aircraft, as well as carrier strikes.

I would agree that STF works at least on easy as well, but there's no doubt that E7 is supposed to be cleared by CTF. It's no surprise that you can clear a final operation using the wrong way on easy, as this is how easy mode is designed to be.

Oh and BTW, if you really hate those himes on CTF route that much, don't hesitate to go ACF, you avoid that fucking AV hime on D node, as well as gaining a chance to go FIJM to further avoid those carriers on L node. Ah, I see. Thanks for the clearing that up. I cleared the map on Normal though, but I still need to farm for Harekaze so I might consider switching to CTF.

STF might be an alternative if you run of bauxite though, since it's consume 1/5th of CTF's baux consumption.