Pwning Evergreen Mills in Fallout 3. I went to Mothership Zeta and Operation:Anchorage right at the beginning of the game after doing the Rivet City run. I then went south to get the Nuka-Cola challenge early, so that whenever I found Nuka Cola Quantum I could fast travel back to Girdershade. From there, I just went west to Evergreen Mills. (Keep in mind, I am only a level 8 or 9 at this point) I snuck up behind Evergreen Mills on the cliffs above the buildings. If you try this, save your game on the cliffs, cause this will get frustrating if you don't. Anyway, There is a spot to the far left of the biggest building where you can jump from the cliffs to the building. Sneak around on top as best you can. You will get spotted, no way to avoid it. Jump to the forward left building and carefully go up to the edge. Make sure you are carrying the most powerful weapons you have. Now, shoot the generator keeping the Behemoth in his cage. Have him and the raiders kill each other. There will be some raiders left to mop up, but as long as you keep an eye on the Behemoth's health and make sure you deal the killing blow, you can still get the achievement for killing all of them. It's the easiest way to get to the terrible shotgun.
