So I'm in the museum of freedom, I've got the fusion cord, entered the robot thing, killed deathclaw and some other raiders and I've seen from tutorials that once you do this, you enter back to the museum and the people await you in the front. For me they don't and when I speak to that black dude who's is charge of the group he tells me what am waiting for... So that means I go on the roof right? I do and wait but there are no more [censored] raiders

When you open you pipboy and check Data, what does your current quest objective say? Maybe a raider is bugged somewhere? When you sneak does it say "caution" "danger" or "hidden"?

Likely that raider is still out there somewhere. I remember there being around 6 or 7 of them.

Guys my one and only objective it's clear concord of hostiles, I've completed all the rest. So what now

PC or other version, got the tape on the roof near helicopter, killed the deathclaw?

If all else fails reload (make sure you save often so you can deal with any bugs).

you likely missed a raider? if the Deathclaw is dead. Look in buildings

Happened to me too, turned out one of the raiders fell through one of the buildings and was below the road. Had to use tcl (no clip) console command to go under the building and kill him.

How you find him? Cause all I've seen are crows, untill the raiders respawn, anyways.

I had this happen to me, i killed all the raiders while still on the roof and then jumped down to kill the deathclaw. Turns out i had to jump down before any deaths of those raiders counted. I spent about 5 hours combing the area inside and out before reloading a save.

I think this is a bug(?), I combed the area for ages and found nothing. If you're on PC you can progress it by entering "SetStage MQ102 122" into the console (without the quotes).

Edit: If not on PC I'm not sure what you can do. Seems weird to me that they're talking about allowing Mods but they haven't (to my knowledge) ever enabled the console on consoles. I'm sure there's a good reason but it would certainly save a lot of frustration for console users, I cannot remember a single game since Morrowind where I haven't used the console to sort out one quest or other.

That reminded me that I fell down from the balcony and ran back inside (real fast heh) then to roof instead of balcony so has not to be "pushed-off" again. Might be why my quest line continued...still shows museum and Concord as not cleared thow and raiders in town and museum respawned but the main quest did proceed forward.

@ Lamontagne;

Also think it's a bug, just trying to confirm.