Open notice to anyone with a gun and some ambition.
Super Mutants have been spotted in <Alias=Dungeon>. These greenskinned monsters threaten us all. They may be frightening, but that just means the supplies you can take off their disgusting bodies will be all the sweeter.
And if that isn't enough, think of all the poor people they've butchered that you'll be avenging.
Keep what you kill. No other reward given.