I'm having 2 major issues in fallout 4 that cannot go around....played over 20 hours and no problem...now 2 glitches that prevent from going further...
First with the brotherhood of steel questline ..when you go to the airship ..and after talking to captain you are to proceed through the door to hear someone speak...however when you walk to the door no option to open door you can walk through the door and will fall all the way to the ground below and die....

Second ...on the quest ghoul problem at country crossing
When you get to the army base the turrets there are unable to be killed and you have no option to open a door to get inside the base the mission is broken....

I have reset the game several times....reinstalled the game...reloaded saves...still nothing