Ultimate gun build WITH sneak crits.

traits -
Small frame
built to destroy

1. Intense training - +1 strength ( required for snipers//big guns )
2. Rapid reload
3. Educated
4. The professional
5. bloody mess ( optional, can be replaced with Living Anatomy which shows health+DT of enemies, ( however doesn't add 5% to overall animal dmg and non-feral ghouls, only humanoids )
6. hand loader
7. shotgun surgeon
8. cowboy
9. quick draw
10. finesse
11. adamantium skeleton
12. jury rigging
13. better criticals
14. weapon handling
15. Silent running

traits -
Small frame
built to destroy

str 4 / +1 implant , +1 intense training = 6 (required with weapon training for snipers/big guns) You will start with 190 carry weight, and eventually get 210 with 6 strength.
perc 5 / +1 implant = 6 = 6
Endurance 5 = 5
charisma 1 = 1
intel 10 = 10
agil 8 / +1 implant, +1 small frame = 10
luck 7 / +1 implant = 8

Armor increase implant = 5 implants with 5 endurance.Regeneration implant isn't needed as it heals so slow its practically useless.

Statistics - Bases + booklets + actual stat allocation (this build requires you to hunt down all skill booklets).

Repair 41 + 12 = 53 + 47 = 100
Guns 39 + 12 - 51 + 49 = 100
Science 26 + 15 = 41 + 49 = 90 (can be enhanced to 100 with gear) (note: there are 5 books for science, only 4 for the rest)
Sneak 24 + 12 = 36 + 64 = 100
Speech 8 + 12 = 20 + 70 = 90 (can be enhanced to 100 with gear)
Lockpick 16 + 12 = 28 + 77 = 95 (can be enhanced to 100 with gear)
Medicine 41 + 12 = 53 + 37 = 90 (can be enhanced to 100 with gear)
melee weapons 14 + 12 = 26 + 19 = 45 (required for cowboy)

that is 412 points out of a total of 487, which means you have 75 left over after this.

I would recommend dumping it all into barter for easy and faster cash, as this build doesn't allow you to carry a lot of weight (210 pounds max) for vendor trash early on or later on. This would put you at 83 barter. Plus mercs come in handy for vendor trash carrying anyway. There are also a few barter quests as well in the game.

This build is best played with companions:

Lily Bowen: melee and tank. Her companion perk: This perk increases the stealth boy's duration by 200% while also granting sneak attack criticals an extra 10% damage. She has rage fits so I'm not sure what that's all about as I haven't used her yet. So if it is a problem some alternatives could be

Boone, considering he has a high sneak skill or Raul, with Raul as a companion all weapons and armor decay 25% less. Combine that with a 100 repair skill and it should be nuts if it stacks and would negate the "built to destroy" trait however he doesn't have any sneak abilities.

ED-E: Ranged attacker. Will play loud music the moment anything engages you in combat so you will know if your mercs are engaged. Will not run away from you as it is ranged unlike rex. With its perk you can detect enemies at a very far range which is too good to pass up with this sneak build, and enemies that are cloaked can also be targeted in V.A.T.S.

what do you guys think for this as a guns build? Any tweaks to make it better?

Between Cowboy and Shotgun Surgeon it seems like you're going for the Lever Action Shotgun, but the Professional doesn't apply to that. Is this more a generic "whatever gun you find" build?

It's basically a build that lets you use whatever gun you want without any hindrances at max dmg output.
I mean if you break sneak and get caught you can just wip out a shotty for close combat.

Well, cowboy 25% more dmg with shotguns and revolvers.

so, +20% sneak crit dmg with a revolvers + 25% more dmg with revolvers.

or Shotgun 25% more dmg plus -10 enemy DT. So mainly this is a revolver//shotgun//sniper// build that can use sneak//sneak criticals. Not really going for a pistol//smg as they don't do that much dmg compared to the other options. So basically it is mainly based on revolvers // shotguns // sniper weapons. Like i said if you get caught sneaking or are in a situation where you can't sneak then you can still blow people away without needing sneak criticals to do most of your dmg with a shotty.

Did that answer your question lol?

Hm... Maybe I should replace the professional with something else?

I suppose you could take bloody mess AND living anatomy instead of the professional for +10% dmg to humanoids. That might actually not be a bad idea...