Earlier, I read the bugs regarding Bethesda Underworks... and I quote "If you enter the Underworks, kill the ghouls, then leave and came back after 73 hours, the Feral Ghouls seem to respawn and start fighting the Raiders. Fast traveling back to the Ruins will drop you right in the middle of a raider-ghoul war almost every time (tested repeatedly on the 360)."
After killing all of the Raiders outside, I headed to the tunnel. Of course, I remembered my trusty ghoul mask from home. I entered Bethesda Underworks and not even a second goes by that I'm in there when a group of ghouls (two ferals, a roamer, and a glowing one) come running towards me. Typical reaction anyone would have... what in the hell in going on?!!?! No! Why isn't my mask working all of a sudden? I just need to get in and get out!
I blink... they are running past me. My lucky day... but what the hell? Are they... they're running outside? Why?
I follow them outside and they run into the middle of the ruins, stop, and look around. I'm guessing they ran outside to fight the raiders and realized I killed them all.As I am typing this, they are making the walk of shame back into the metro. Fun times Fallout 3, fun times. Wish I taped it.