LogFAQs > #962460487

They are supposed to be an endgame enemy that if you encounter in the early game you will be slaughtered by. Killing one as a under leveled and under equipped person should take some serious meta gaming knowledge, luck and should drain most of your meager supplies.

You try to take one on with you leather armor and rusty shotgun you will be torn apart, But in FO4 you fight a death wimp within in the fist 40 minutes of the game, get gifted a suit of power armor and minigun to deal with it and there is zero tension.