After many issues just trying to play this DLC, I finally managed to get through it. However now that I have killed Father Elijah and took the gate to return to the Mojave Wasteland I now find myself back in the BoS Bunker with no way out. I have had all my previously removed gear returned to me but when I try to climb the ladder to the Mojave Wasteland the prompt says "This lock cannot be picked, it requires a key to open." Is this another glitch or was I supposed to get a key somewhere in the vault?