Motherfucker the end to The Sacrifice is hard. We started all 3 generators at once, Zoey died, my and my friend were downed and Bill barely managed to get us up. Which a tank and a charger then appear...somehow we survive them and get on the bridge. The human players race up the ladder, Bill gets down by zombies then dies. Then we're told we have to go hit the generator to keep going higher...before we have time to think at least 2 tanks have spawned and are somehow already on the bridge. And I actually think there were 3 tanks.
We died, very quickly, and it was on Normal. Fuck that noise.