I think I like that 9th anniversary map, it's challenging but doable if players know how to build team with perfect speed so their:
1st team will do 1,2,3,4
2nd team do 5, then succide to 6
1st do the rest

The 2nd team should be a counter team and this team eat 5th fight alive.

But building team with perfect speed like that is painful.
I did something like that once, almost cleared but then I changed my team and lost all the changes.

I'm gonna send positive feedback about this fight.