[img]http://images3.wikia.nocookie.net/__cb20091211115910/fallout/images/thumb/e/e3/Icon_pc.png/14px-Icon_pc.png[/img] After killing Elijah, the elevator may take you to Vera's suite, rather than the Villa's Fountain. If this happens the quest will not advance as it should. At this point if you try to re-enter the vault, or leave the casino your collar will explode. However, if you use the console commands tgm and unlock on the casino's doors, you will be taken to the fountain. Head to the Mojave Wasteland gate, and change your view to third person. Then, open the console and type showinventory, then select the player. If you now cannot see the collar id on the console, drop items until it is visible. Remove the collar using player.removeitem X # (X=item id #=amount of item). With the collar removed, pick up your gear and use unlock to open the Wasteland gate. This will allow the ending slides to play, and you will be taken back to The Abandoned BoS bunker. When back to the bunker, you can unlock Elijah's terminal, Elijah's footlocker, and the footlocker beside the ladder with the unlock command. Console commands can be used to complete the quest afterwards. You will then be able to continue the game, still gaining the perks and items you would have if this bug had not occurred.