It would be cool, but I don't think it's if into the story of the game, with all the evil destroying the world the Traveler doesn't want you kicking back and watching the news lol. But I would still like to see an area that you can enter and invite your fireteam and instead of a vault you could have an armory in your house. Or they cold give you a flagship base to teleport up to from a planet or the tower that includes a hangar with all your vehicles in it.