The build focuses on giving you the absolute best everything, because you can max every skill, use every weapon with near-optimized efficiency (even non-energy weapons), and your perks prioritize inconveniences such as getting blown up by a satchel charge, getting pummeled by tunnelers, or having multiple limbs crippled without any doctor's. Depends on the build: The best guns are: Riot Shotgun: It’s versatile (Specially if GRA ammo is involved), and is affected by both the Shotgun Surgeon and the And Stay Back perks, allowing it to ignore a decent amount of armor in most enemies.
Alright, after completing the game all four times with a Guns character, I decided to go for Energy Weapons. The crew 2 money glitch. The problem is, in Fallout 3 it seemed so easy; you had access to 29 perks and lots and lots of skill points. In New Vegas, however, that's not the case.