THERES A FIX FOR PC BUT NONE FOR PS4 AND XBOX THIS IS [censored] PISSING ME OFF NOW I GOTTA START THE GAME OVER I WASTED HOURSSSSSSSZ
Well, I'm playing on PS4 and this quest was just fine.
This is why I always play Bethesda games on PC. I love them, but heaven help you, there are almost always some quest line that breaks somewhere. With console commands available, I have peace of mind I'll never get stuck. Hopefully we'll see a patch fairly quickly to address the more common problems.
Did you kill all of the raiders? You need to clear them out after killing the deathclaw.
OP appears to be one of those cybertone deaf, ADD type gamers who don't understand the concept of saving the game every 20 mins. Hell I'm on PC and I always save my game every 15 mins or so. Result? minor loss of save game progress.
That being said, I didn't experience this glitch
Which way did you leave the museum as i'm pretty sure if you got out the main door you miss an enemy on the roof of the building opposite the church next to the museum. I had to reload as this happened to me, the first playthrough of the quest i went out front as i had already been on the roof of the museum and got the mini gun and armor, killed everyone but couldn't complete the quest. Started again left the armor on the roof started the quest went out roof door killed the enemy on the roof, took out the rest of the guys and all was well in concord.
So I guess i am saying if you didnt go out the roof door head back up there and see if the last pesky raider is on the opposite roof waiting to be shot!!