Hi, im posting this here since it?s really not an "issue" so it doesnt fit into that category.
Well, i got pissed off by Lucas Simm?s stupid voice and shot him. Ofc all megaton inhabitants turned hostile on me.
I thought that well why not, slaughter everyone for xp and then go to mr burke to blow up megaton for even moar xp to be supahdupah-power-xp-gamer.
After killing simms,stockholm,moriatry, some settlers and nathan i enabled stealthboy and waited (inside megaton) for while. After that no one was hostile to me ?

I took some screens to confirm this bug. Tho seems i cant add em here so url if some1 needs.

Plain FO3 install without mods.

They automatically become friendly after 72 hours, but sometimes earlier as in your case.

Aight, ty for fast reply.

Actually, the problem here is that using the SB and crouching will automatically make folks non-hostile again. It's a well known bug.

everytime they turn hostile(before i blew em up)i ran out waited 1-7 hours and they werent hostile anymore