[quote=@Hjalti]
[@Letter Bee] So what events are canon? 

- The good ending of Fallout 1

- Fallout  2 

- Fallout: Brotherhood of Steel

- Fallout: Tactics 

- Fallout 3 

- Fallout: Van Buren

- The defeat of Caesar's Legion in New Vegas

-  The DLC of Fallout 3

- The DLC of New Vegas
[/quote]

1.) Yes, although some of the 'Bad Karma' sidequests were done by other people.
2.) Yes, although some of the 'Bad Karma' sidequests were done by other people.
3.) Dude, I heard bad things about that game; I don't think it's Canon at all.
4.) The only thing true is that there is a relatively inclusive Midwestern Brotherhood.
5.) The guy whose father was shot may or may not be the same person who helped the BoS take the Purifier. What is certain was that he was not the same guy who helped Ashur in the Pitt; that really was another character. Another person was also helping Paradise Falls enslave to and fro, and yet another did the Synth sidequest.
6.) The NCR-Brotherhood War still happened, there was no Prisoner (the planned PC).
7.) There was [i]a[/i] courier, but not [i]The[/I] Courier. Basically, the NCR won at New Vegas because of several 'PCs', such as a Scavenger, an NCR Ranger, and a Tribal, who all tackled their share of sidequests, and parts of the main quest. However, several Legion quests did happen, simultaneously with the NCR-centric ones.
8.) New Vegas DLC: Ulysses got confronted by an entire party and talked down, perhaps because he was outnumbered. As for the other DLCs, didn't care to find out about them even when I did get the game.