What difficulty? They won't allow me to leave Hard mode, I started a nornal save and I'm half way back to where I am on hard which is the sawmill but keep funding myself booting up the hard save even though they are near impossible without taling them out in chunk and then farming, rinse and repeat.
Normal difficulty. Chicago Chopper 1 shots the standard freaks, with penetration, ammo capacity, focus perks and the upgraded mag for the Chopper its pretty easy to kill hordes.
"Wheel me out to the curb for garbage day"