So i think i some how screwed myelf over in fort hagen. I just finished killing Kellogg and i raided his body and opened the security doors. The problem is when i went up the stairs to the now opened doors, i found that the security door that i had come through earlier on, on that level was now locked and there is no way to open it. At first i thought, maybe there was another way out that i missed but after looking up walkthroughs i found that everyone else had no problem going back the way they came through that now closed door to the elevator. Im really stuck now and my last decent save point is way before i cleared out fort hagen but i think im going to have to just load back that far (what i get for doing only quick saves). Im guessing no one else has expirenced this problem/glitch??

Yes, I'm having the same problem. I'm on ps4.