Im an intensely serious roleplayer and gamer and i won't work for the Legion or NCR. I need to complete their storyline in the least minutes/hours possible?

Im thinking ...

LEGION: Head straight to vegas kill benny and get the mark of ceaser, kill all the factions, do hoover dam

NCR: Straight to vegas kill all the factions, do hoover dam

........ i have no middle or serious thought into these beginning to end stories. Where should i stop of etc? please help. I have about 6 hours. :celebration:

DONT start flaming me for ''not playing in the true spirit'' I've played every fallout game and dumped about 400-500 hours into New Vegas. Thankyou. :foodndrink:

---- I'll keep you upto date with my plan

UPDATE: new idea! i have a lvl 25 with no strings attached to any groups ill use him as my robot.