So my idea is to create as realistic gameplay experience in fallout NV as it can be with consoles (xbox360,PS3). Because we cant have mods we need to alter the couriers attributes and skills to archieve this at the start of the game. This is work in progress and i will be updating this post from time to time if i make new foundings.

What i want to archieve is realistic gameplay. Well as realistic as it can be.

Easy difficulty and hardcoe mode turned on.

Strenght needs to be putted as 1, because the idea is to limit the carry weight and all so make sure we are not too effective with guns of anykind since we are playing on easy.
Endurance needs to be putted to 1, because the idea is to limit the ammount of HP we have and all so we need to be more prone to crippled limbs and what not.
Luck needs to be putted to 10, because we want to ensure that there are loads of critical hits on later levels against more powerfull opponents. One shot in the head should result in a kill.
Charisma needs to be putted as 10, because we want to have high barter,speech and social skills in general.
Agility 6
Perception 6
Intelligence 6

Tag non combat skills of your choise.

Take small frame as a trait, so we will be more prone to cripled limbs.
Take good natured to boost non combat skills

Once you level up do not put points in combat skills of anykind,

Do not take perks that increases your healt,damage output,carry weight or your damage treshold.
Anything that increases chance for a critical hit is recommended to take.

Do not use armor that has any DT, only use normal cloathing with 0 damage treshold.

Do not use VATS at all.

Notes:
So far so good, my first encounter in primm resulted in 4 or 5 killed convicts and i got cripled head and leg and i was near death.
Gegos dies with one shot in the head and two to torso with poor condition 9mm. Seems fair enough.

I believe i bit too much to chew as there are too many variables in this game to make it "realistic" from start to finnish.
With right combination of attributes,skills,guns,perks,traits,armor and difficulty level it is doable but without them we cannot create "realistic" gameplay.