Is it possible to implement like a bonus wave after tincans?
So if you beat tincans you have won the map, but you first have to fight against <bonus wave>
if you lose that the map will still be switched
that might get people inclined to actually beat tincans rather than lose to keep the map (if they are having a good run)
obviously, if you lose at tincans then you start at peasants again
might be like a wave of donkey-riding peasants with totally overpowered stats or something