So, I did the mission in the hotel to rescue Reilly's crew, and afterwards went to their pad.

As far as I know, I didn't do anything to upset them. In fact, she gave me the quest to geo-map the wastes. However, a while later when I went back to turn in my findings, they attacked me on sight.

What'd I do?!?

It's a bug in all 4 ranger scripts. If any of them die, for whatever reason, they go hostile on you. It could be that you had a random encounter with Donovan where he died and that could trigger it.

I don't know, I do something that is hugely spoilerific that causes at least one Ranger to die, not by my hand of course, but they never go hostile on me after that. There is a glitch when you get to the roof, if you don't immediately run to them, they will fire on you. Sometimes they freak out if I have a follower with me, so if I do, I leave them inside, meet and greet Rangers, then run back and get the follower.
Sounds like you are too far along to reload a save.

Ive never came across this bug , well if they go hostile too you and there,s no way too talk just let your Shotty do the talking and dont feel bad about it its the Law of the wastes . oh and loot theyre body,s

im on a new playtru on this one right now next target is 3 dog got my SneakSuit from angorage and im dangerous

I think Angleae got it right. One of the four of them died in the escape. They responded appropriately when we got to their base, but the next time I visited them, they were hostile. If I hadn't already done so much stuff in between I'd go back and get it perfect, but it's too late now. Oh well, time to take 'em down and loot their stuff!

For those that are interested, each ranger has their own unique script. However they all contain the following

begin OnDeath

if ( DoOnce1 == 0 )
Set MS18.BrickDead to 1 (note: this is the only line that changes between individual rangers)
Set DoOnce1 to 1
endif

;This is an OnDeath check that will override the Combat check if the Player has the capability of slaying the target in less than the amount of friendly fire hits

if ( GetStage MS18 < 40 ) || ( GetStage MS18 >= 50 )
set MS18RangersHate to 1
endif

end



It's that second part that is the problem. If it was in a "OnDeath Player" block it would be okay or if it had a "if IsKiller player == 1" statment it would also be okay. As is, any reason for their death sets the rangers hostile unless MS18 (Reilly's Rangers quest) is at stage 40, which is escape from the rooftop. If one is killed on the rooftop (usually by "friendly fire") they go hostile. If they die after escaping the Statesman hotel, they go hostile.

Does that include one of them dieing and then reloading of a save? I managed to save them all and the last time I visited their camp, they went hostile on me as well. I though maybe 'cause my character was neutral at the time (wish that was easier to maintain), they attacked me. So far this play through, my character has nixed a few NPCs. Namely the Children of the Atom priest, Sister (Rivet City), and Jericho (for being so damn rude to my last character). Having actual murder count on your stats wouldn't make Rangers go crazy would it?

As I said before, it could be Donovan. He's part of a random encounter and has a nasty habit of dying (he generates with a few super-mutants). You'd have to reload a save before that or (if on a PC) bring of the console and type

set MS18RangersHate to 0

That should reset them.

I will definitely write this down. Brick apparently died ( I didn′t see that) and everything looks fine now as I got the mapping quest. If things go bad later I′ll know what to do.

Or I can just do this