In order to make Fallout: New Vegas a more interesting experience a series of mods have been cobbled together to make an authentic Warhammer 40k Guardsman in the new vegas world. Conjuring up a backstory and playing 'in character', Dark Heresy style.

From the creator themselves, here's more about what this particular mod has in store for Fallout: New Vegas: 'It has been two years since this was first released; Initially, a simple skin of 501st. A Warhammer 40k total conversion for Fallout: New Vegas. The NCR has been totally converted to the Imperium, including imperial guard forces, Adeptus Arbites, deathkorps of krieg, space marines and sisters of battle. Forum advertising campaigns like this one are shown to any consumer who can be not really logged in. So I was playing today and realized that this game would be the perfect paltform for a Warhammer 40k Mod. The could already function as a Warhammer 40k game with some imagination. So just from my experience so far I can see the a total conversion mod working something like this (just spitballing ideas here) The World - The world with all its radiation and war torn nature could work very well. Brave New World is a project that gathers the work of professional voice actors, carefully selected to revoice Fallout: New Vegas. The mod revoices roughly 7,000 lines of vanilla dialogue and covers 145 NPCs. Nearly four years in the making, Brave New World gathers the work of professional actors to revoice Fallout: New Vegas.

Using the following mods;
http://newvegas.nexusmods.com/mods/36059 - Imperial Guard Armor and weapons
http://newvegas.nexusmods.com/mods/36646 - Auspexp-like device to replace pipboy
http://newvegas.nexusmods.com/mods/45881 - A skin for the new pipboy that looks more 40k
http://newvegas.nexusmods.com/mods/41395 - Play as a raider race with a new perk that adjusts a few things
The Dark Heresy Corebook Lists the starting skills and equipment for a guardsman for which I chose Swim, Pistol Training Las and Basic weapon training SP. Basically what I am doing is adjusting my skills to keep up with the Dark Heresy levels as much as I can.
My character's starting world is Mind Cleansed; and so gains the Jaded, Imperial Conditioning and Through a Mirror Darkly traits, which I will roleplay out. In addition he receives some extra weapon training, which makes the list look like this;
Melee Weapon Training Primitive
Pistol Training Las
Basic Weapon Training SP
Basic Weapon Training Las
Pistol Training Primitive
Pistol Training SP
I am playing on Hardcore Mode for moar Grimdark.
Starting gear:
Axe, Hammer or Sword; Axe-spawned a hatchet.
Flintlock Pistol or Las Pistol; Las Pistol
Lasgun or Shotgun or Musket; Lasgun
Knife - Using the straight razor from the Doc's
Guard Flak Armor with Goggles spawned as well
Uniform or Stealth Clothes; Uniform. Spawned Lieutenant's Hat
As an Extra I spawned a 'flak backpack'.

Fallout New Vegas Mods

I chose the raider Race, and made the character as ugly and intimidating as possible.... The result
Hellz Yes.
Character Backstory;
Conscripted from a harsh jungle world, Ravion Baxter was conscripted into the Imperial Guard as party of his planet's Tithe. He joined, ready to protect his tribe and planet from the Imperium's enemies. A giant of a man, Baxter was a gruff and competent soldier. Assigned to a terrible war world, called Malice, Ravion was subject to the horrors of war. After a particularly bloody victory over the enemy, Ravion was called away for questioning. An order had been sent down that an individual had been suspected of heresy and conspiracy with the enemy, that individual was not Ravion, but a mistake by an overworked clerk caused the wrong man to be tortured for confession.
Unable to extract enough information, the military turned Ravion over to the Inquisition for further questioning. Annoyed with his insistence of innocence, the interrogators broke Ravion's mind with countless interrogation and torture sessions. Passed from handler to handler, subjected to the horrors of the Inquisition, a curious Inquisitor discovered the years old mistake that had landed Ravion, now nicknamed The Mistake into a decade of hell. Deciding to keep him for cannon fodder, the Mistake was mind cleansed to be prepared for Inquisitorial service.
The years have warped the Mistake into a thing, more than a man. Bar-codes and torture scars decorate almost every square inch of his skin. He speaks in brief phrases and always has a look of murder and hatred in his eyes, though his loyalty to the Imperium is still intact. More than anything, he wants to share his twisted pain with those who did this to him, for which he blames the traitors he was told he fought long ago.

Fallout New Vegas Imperial Guard Mod Apk

TLDR; Playing one tough and pissed off guardsman ready to spread a little righteous vengeance around.
The excuse I have for him showing up on an alternate Tera long ago... THE WARP!