I'm on my 3rd playthru I started last night, so only a level 7. But my last playthru i was a level 30, and they start showin up in some camps. I killed one for the armor that turned out to be a ghoul inside. But then the whole camp is ghouls except the CO. The first play thru, they didn't show up till the very end, guarding the president, you never see em fight. That sucked. Great work tho.