by Drakkmore » Sun Jun 21, 2015 2:42 am
You have to make your way through a terminal type place very fancy before the war with restaurants, and stuff, the actual train is underground. That is unless they changed it for yet a third time since the last time I DLed. You have to do some miniquest type things to clear the way to the train to the Mojave though. Once you get there though you'll begin the NV MQ story arch from the Dr's though you won't have to go through the character creation, and it is some years later. Head wounds might cause amnesia, and time loss. All of your companions will be with you, and you'll have all your FO:3 gear that you've collected on the way.
EDIT: the train back to DC is just north of Vegas.