Hey I am upping this topic because I have encounter the very same problem. I run Fallout 4 on ultra settings, I turned it to the lowest and it still doesn't work.
Also it doesn't seem to be the quest crashing but a "certain zone of the map": because when I try to go on this part of the map (where the vertiptere goes too!)
the game just close with no report or anything, I just end up on the desktop.
Thanks for the info about it being that specific cell; with that, I was able to make a save game right before entering it, and sent it to a friend for reproduction. Hopefully our saves aren't completely broken by whatever this is.