To me the hardest wave in CIU to me was like…
1.A save zone in the middle…
2.You are surrounded by metal rods.
3.5 chick Gatling gun is firing at you from 5 positions.
6.Chickens and the Gatling Guns are also surrounded by metal rods in five position. (Each cage has some chicken and a Gatling gun.A Gatling gun fires 5 eggs…The y fire at you at the same time)
7.The whole thing is moving in circles.
Because of these conditions you’re not able to move too much in a cramped place…And the attacks of both the chickens and and the Gatling Guns kill you instantly when the wave starts.