Editing Oathsworn (section)

==Assorted Fluff yet to be properly worked through==
+++ Geneseed +++
The Geneseed is remarkably pure, even 10,000 years after the heresy none other takes so easily to potential aspirants. Likewise despite the loss of their genebanks they have been able to slowly rebuild, a feat unmatched by any other legion.

Likewise, the Oathsworn have displayed a genetic disposition less compatible with chaos taint.

Common Traits:
+


Faustus did all the regular primarch stuff, but like Ferrus, Vulkan and Perturabo he spent a lot of time on these side projects that changed the war. Where Ferrus basically invented all the various Terminator armors and Pertt made the best war machines, Faustus revolutionised medicine and modern science. I'd be a fan of larger legions for other legions too, at least the ones close to Faustus or have large Oathsworn detachments, to represent the discoveries he's made. It's been mentioned the Oathsworn have a couple things going for them as well for their activities. For one, his boys are basically chapter masters as we know them in 40k with their own mini fleets and recruiting bases. Then you add in the adoptive sons of that fall under other legions, who they probably get a lot if love from pre censure because of how much they help.

Second you have the mini detachments that both obscure their numbers while vastly increasing their rep with the Imperium. Pretty much every fleet or rogue trader of note have a Oathsworn present for contact with new worlds to help catalogue stuff and send up data as well as fill honor guard roles. Whenever a new world is found, they send out a ground crew with Oathsworn to do all the inspections for hostility/hability. Plus first contact goes smoother when you have a giant benevolent war god who is immune to small arms fire but brings the cure to space cancer. Oathsworn are boring and vanilla compared to others Legiones and their glory, but when humans think Astartes they think Oathsworn.

Third, the lesser known thing and part of why the Oathsworn don't have as many glories are their destroyer corp. Others have them do rad stuff and phosphex. Oathsworn reduced worlds to sludge and rock. None loved humanity more. None hated the alien more. Their biophages are the stuff of nightmare, and helped give the warmaster work up a fear about the Oathsworn.

The last and worst part was their independence. Even with working on the front, Faustus got a lot of leeway to spend time with his projects. This gave his commanders a lot of time to do shady stuff, which let some go off the deep end with their own experiments. The Warmaster had plenty of things to gather as evidence of OS going rogue, and we might even have past censures of small warbands. The Oathsworn are beloved by the people, but no one really likes or trusts Faustus. 

On a side note, I imagine Luna gene-wright culture probably continues in the legion as a secretive order or cult to outsiders like the Mechanicus or Dark Angel circles. A notable aspect of their inner orders is that everyone has a role or archetype they are reborn as Astartes to fill. You're the Hunter, the General n ect. The cults helped resist REDACTED spies during the heresy by being insular and hard to infiltrate, but looked shady and religious as all hell to fellow legiones.

Faustus didn't do personal combat too much himself I bet, but likely had a dizzying array of equipment meant for science but repurposed for war. A narthecium that gives him fleshbane and armorbane with applied potions, a couple destroyer plague grenade gun, and other wonderful. He'd be a good combatant if he was, wel, a good fighter. Compared to mortals he's a god, but against any primarch other than the warmaster he'd get his ass beat. Definitely a buff primarch if this was a Horus Heresy FW model.