Let them fight it out (half of them are fighting the other half) but you will need to draw
3 of them to the bottom of the bridge. Once they are there run back to the start of the
bridge and lay down and shoot them in the head (short burst to the head). If there are
some on top of the hill near the bridge you will need to use the gun on the jeep to kill
them (do not drive the jeep further then a few feet). Takes a while but you should come
out with little damage (20% lost)

Kick a chair from the ammo room all the way to the first set of main doors. Put it in the
way so that it wont close behind you. By the time you get this doen the Fatboys are right
outside. Switch to shotgun and level them quickly at close range to the face. This is easy
to do because they are too big to walk through the doorway where you are. They wont get a
single shot off if youre fast enough and they will go down fast that way. If you do take
damage, now you can just go back and restock as many times as you need to. Enjoy!