Only the final map left now. Beat ?-5 with 4x 600+ speed teams and a megaslow helper.

First team had one evolved bronzie to be able to take down the first enemy + 2*s with 5-600 speed.
Second team had my best and fastest units including Orchid.
Third team had 2*s and shitty bronzies.
Fourth team again had the best things i could get at high speed.

Team 1 and 3 basically killed the first mob, then ran downwards and got themselves killed. Team 2 and 4 went up through the spiderwebs and killed the 2 thingies there with some RNG. The helper was slow and eventually killed the final boss. If you have many fast helpers you could always opt to remove the 4th team entirely and just rely on the helper teams to go through the spiderwebs instead.

Edit:
And there i finished the final map.

a picture speaks a thousand words:

->Open Spoiler<-

Originally Posted by soranokira

a picture speaks a thousand words:

->Open Spoiler<-

is that for ?-5

Originally Posted by LostRain

is that for ?-5

yes. helper squad = 500+ with high power btw.

Originally Posted by soranokira

yes. helper squad = 500+ with high power btw.

Thanks, just got ?-5 and ?-6 left, hopefully i can be done with this event on the next refill

Done with this event.

?-5 is pain in the ass to 3*
?-6 is ok, only have use normal squad on top base to beat boss before whirlwind and let them die on final boss.
?-7 is easy
?-8 kinda easy if you have strong helper but generally still easy, but harder than ?-7

For those wondering what E2-8 looks like after stepping on buttons...

->Open Spoiler<-

I had main team decent power in lower spot all other up top and by the time main got to final boss other creatures cleared.