The opening newscast specifically mentions nuclear detonations taking place in New York and Pennsylvania.The rocket shaped bottle was part of a promotion, should the gamer find some of the advertising notes from the bottling company.It's also no wonder kids mistake the Isotope liquid in Rocket Souvenirs for Nuka-Cola when its glasses are shaped like that.Send a nuke into your mouth for an explosion of flavor. Nuka-Cola now comes in a rocket bottle.
The only way you can be farther off the map is by going out of bounds or teleporting to QASmoke, which removes you from the map entirely. Not only is he literally off the map, he's literally off the grid as well. Goes even further if you take the gridlines on the map into account. If you look on the Pip-Boy, his location is outside the dotted line.
The song is "It's All Over But the Crying" by the Ink Spots. In the prologue during the character creation part there's a song playing in the background.Of course he would have that one as the first voiced Fallout protagonist, he surely is more charismatic than the previous PCs. 111 has the Charisma Bobblehead in his home.
Bethesda waited seven years to execute this. In Fallout 4, you get an achievement named ".The Harder They Fall" for killing five giant creatures in the Commonwealth.