I tried to play the game, and failed utterly.
I did the tutorial, then tried to make my way to new vegas. Of course, I ran into caesar's legion at that one town. I saved the people they kidnapped, unaware that it would mean that my character was going to be hunted by high-level enemies with powerful gear for the rest of the game. I did try to do the thing where you run to an NCR base and let them kill them, but the legion murdered the entire base they were so op. Despite this, I somehow managed to beat them (partially the NCR wore them down a bit, yeah, they didn't kill one legion guy despite their being a dozen of them...) I then tried to do that quest with ghouls that want to go into outer space. I tried to do one quest, and got owned by lizards that looked like the ones you fight during the tutorial, but apparently are far more powerful. I was also having a problem with my character not progressing at all as I leveled. Everything kept getting harder and harder to kill, despite the fact that I was in fact specializing in ONE combat skill. One of the last things I fought was a scorpion which appeared to be immune to all damage, even though I was using armor-piercing rounds. Those rounds also didn't do much to the legion guys. I think I expended all my ammo on them and had to melee them.
Anyway, after all this, I gave up, since I obviously completely screwed up my own game. And I was playing on the default difficulty mind you.
Now I'm thinking of trying again, but obviously I need to ask what you're actually supposed to do in this game, since questing when you're low level is obviously a VERY bad idea (someone else I talked to referred to that legion quest I did as a 'noob trap').