Originally Posted by Tenhou

If you cannot clear it reliably, level your team instead of pointlessly failing over and over and wasting stamina.

To give a random benchmark, my squad with 4 teams ranging from 70k to 80k power each can do the map rather easily. One team might end up dying if they take too long and spawn a lot of flies, but only one team.

I was able to clear it at first with total power of around 170k only, and one good squad around 80k. Seems like people are making too much fuss over how strong you actually need to be for these events. Either that, or foolishly leveling their 4 squads evenly instead of focusing on one or two strong squads first.