Weird happenings... Started 2.6.3 TTW made it to new Union Station and got blasted by a Super Mutant with a rocket launcher to New Vegas at the BOS sewer entrance to Dead Money DLC. I am sure this is a 1 in billion occurrence.
Took blast damage, we killed the mutant with the launcher, on the way to loot the mutant a load screen to New Vegas appeared. One way to get to Vegas, via rocket launcher? Reloaded autosave, and everything in Union Station worked fine, and took the train to Vegas to be shot in the head. Had a blast!