Not once in all my playthroughs did this happen to me, until now. I did the Blood Ties quest the peaceful way.
Arefu donates bloodpacks and is protected by the family in exchange. Upon recently revisiting Arefu and Meresti,
everyone opens fire on me. Lucy at Megaton doesn't want anything to do with me anymore, either.

I know this happens because of a bug. Alan (a member of the Family) is assigned to protect Arefu but has
recently been killed by some random encounter (I didn't witness it) and they are blaming me for it.

Does anyone know of a simple command code to make both factions friendly towards me again? I'd prefer
not to restart the quest but just change their status, if possible. As for Alan, dead is dead, as far as I'm
concerned, so I'm okay with that. It's something to remember for a next playthrough though, to reverse
pick pocket some better gear on him.

Anyway, thanks in advance for any help!