Skill bg up to 200+, get reasonable strength, 10 agi, PE 6+, 2x action boy, bonus move, 10 endurance, how many lifegivers is up to you. Don't cut entirely on luck . I have one with maxed out lifegiver, but it doesn't deal that much damage, I think any form of DR is better against NPC's anyway.
Getting one BRD buffs your damage by approximately 8-10 extra damage, MRD is advised , but no must (tho I don't remember exactly how much bullets per burst hit from 2hex+). If you onehex, every BRD enhances your DMG by ~20.
But BRD+MRD make you more versatile, enabling you to use miniguns more efficiently, and those are easier to get then M60 ammo. Having toughnesses is a great thing too, most NPC's spawn with jhp ammo in their miniguns.
Here you, you can fiddle with your build now.