Stacked engies in this gamemode are so OP honestly. Unless zombies coordinate their attack very carefully (heavy tries to grab all damage and attention on himself, engie throws his sapper bomb, medic is there to help while others rush in), which is very unlikely, they don't really stand a chance, especially if there are no lone wolves in RED team that you could easily kill to add time and new teammates. If they all huddle pretty closely together, it's really damn tough to get at least one. But then again, I played this mode for a couple of rounds only (and haven't even tried zombie spy to see what ability he has lol), so I don't know much about it. It's still pretty damn fun though
