Originally Posted by XDrakeX

Anyone has some advice how to clear the ultimate stage?

Put 3 squads in the first base and 2 squads in the middle. Ignore the one with a crawling pest behind gate. Pray and hope the RNG is on your side.

I did it the opposite way. 2 on the top left and 3 in the middle.

Needed at least 1 squad in middle to circle once to take out one group of pest between the 2 whirlwind panels. The ones that don't go in the circle path go up and head towards the 2nd spinning panel to assist the other squad taking the top path from the top left base. And in case RNG in center is screwing with you, if the unit taking the top path is slow enough, the center units can even circle once because of all the whirlwind nodes.

Both way should work though. Unless RNG really likes to screw with you.