Apologies if this has been asked, I did a search and came up dry. I just ran through the game after having not played for over a year and I'm kind of confused. Some sources seem to indicate the vault was sealed sometime in 2256-57 when the previous overseer vanished and Alphonse Almodovar took over. Later on during Trouble on the homefront Amata says the vault was open and they sealed it off when you were babies. So which is correct and if the former is correct how did James get in, just walk up and knock on the door "hi I just met you and this is crazy but need a doctor?" and open sesame? I'd be more inclined to believe Amata since as isolationist as the overseer is I can't imagine him opening the door for some random guy with a baby that just shows up on the doorstep. Just of of pure curiosity too how would he contact those inside? The panel by the door has a speaker on it but there never seems to be anyone near the panel on the other side which I assume is the other end. And the seeming lack of a surveillance camera of any sort begs the question how would they know he wasn't a raider or someone bad BS'ing them?