What Do You See are Big Diffrences Between New Vegas and Fallout 3?

[Grell Sutcliff]

After that I made up my own ending because they assumed I was an anarch for a free Vegas, but my character stayed and used all of her power and knowledge to march out across the wastes enforcing everything, she used her knowledge to wipe out yesman before reprogramming the securitrons and then working on her own line of robots.
By that point in the game she had already invented shielding, had very energy resistant armor, high quality nano-machines, and a permanent stealth-boy implant. She could have stomped her own army easily, worst case scenario she'd got a hundred shots with that alien tech she found and that can one shot a death-claw.

Awesome that's basically what I did except for the new armor thing and I would never go aganst yes man, me and him were like best friends so I make the story that we were still buddies after he reprogramed himself and I ruled with a fair dictatorship over every town in the game and would slowly spread my power to overtake the NCR (all of the potential leaders for the Legion were dead by the end of the Hover Dam battle).