WHO IS THE MOST LIKELY TRAITOR LEGION TO BE REDEEMED? THE TOP FOUR! 

I’m pleasantly surprised how high you have the Night Lords. I would love to see a reborn Kurze, pure of purpose. Batman 40k 🤣

It would be a hella of a twist if it turns out Roboute knew all along that the Alpha legion were double agents or at least found out during his confrontation with Omagon during the Scouring.

Clone Fulgrim IS the true Fulgrim as much as snake demon version. They are two halves of the same whole. Clone Fulgrim should be called Loyalist Fulgrim, as he needs no redemption. And, ALL Primarchs are engineered from the start, making a "clone" is not the same as cloning a human. Primarchs are vessels for the warp spirit that makes them who they are. Loyalist Fulgrim is worthy of being that vessel. He is therefore Fulgrim. Not a copy.

“Magnus please come home.” “WHY!?” “Guilliman’s elf waifu can cure your sons of Ahriman’s screw-up” “And?” “We also have Crotalids” “. . .Crikey I’m convinced.”

You’re wrong about the Alpha Legion, they have always been loyal, that’s why they were created - to do the things that no other primarch could countenance, and you even quoted some of the supporting lore. The Alpha Legion is so loyal that they’ve even allowed some of themselves to have their physical bodies corrupted by chaos, a fear no other legionnaire could succeed at without it being clear to the chaos gods that they were being fooled. The Hydra awakes.

But here's the thing: The fate of his legion is the very thing that binds Magnus to Chaos. It was only to preserve his legion, to preserve his sons, that Magnus chose Chaos; he would have paid any other price but his sons. So if we're talking about the redemption of traitor *legions* , the Thousand Sons and Magnus should by far be the top contenders. If there had been *any* way to preserve his sons while joining back with the Emperor, Magnus would have done it and, I do believe, would still do it. Magnus didn't choose Chaos, he chose his sons, as any true father would.

gotta agree with the alpha legion being number one. My theory for them is that only one of the twins wanted to side with horus, and the other, with the emperor.

There is a theory Kurze was wearing a soulstone (in his crown) when he died, 10,000 years safe from the chaos gods might have done wonders for his sanity. Also I do wonder if the AL had a 3rd primarch only known by the other two

Magnus was loyal to his legion and his people. This was always his character. There was no choice in this context. The emperor messed up and so did the space wolves but if that situation or choice could change…..well

Didn’t we find out in the alpharius book of the Horus heresy set that alpharius and omegon switched names Which means alpharius is alive and omegon is dead especially seeing as the special armor the primarch wore was omegon’s armor he had from the planet he landed on while alpharius was on terra the whole time? I’m confused but that’s alpha legion for you. Hydra Dominatus!

I WANT to say Alpha Legion but the truth is we don't know a whole lot on them to be sure. So I'll have to say Iron Warriors. Hydra Dominatus

Seems like the emperor dropped the ball with magnus. He could've just said "yep, we'll try" then let nature takes it's course and still have Magus heading his new marines. What is that image of purtarbo holding magnus from?

I just hate it that the emps said oh yea we have to kill your sons lol. At least they should had the honour of fighting and dying for the emperor then I can see a magnus who would follow his father

Hey Rho! This has been a great little miniseries, I’d love to see you do the reverse next. Which of the loyal legions are most likely to fall to chaos?

Guilliman yelled across the battlefield to the enemy before him. The word his father had told him to say had the desired affect. Every one of the enemies who heard him immediately clicked on their vox and repeated the word to all their forces. Everything became still and silent for a few moments before two figures emerged and strode across the battlefield to stand before Guilliman. They took off their helmets and stared at him, two identical sets of eyes reading every muscle of his face. Guilliman repeated the word his father had told him. In perfect unison came their response, "For the Emperor!" As if in response, the rest of the enemy marines and even some of his Ultramarines called out, "Hydra Dominatus!" The Emperor must have had new orders for two of his most secret weapons.

Ok, here's a potential theory, the Spear of Russ could help redeem a legion or a primarch

Magnus and his legion were already engaged with demons and forbidden spells that kept pushing the influence of Tzeentch stronger to the materium...I'm sure it was Tzeentch or indirectly who gave Magnus a temporary pause on the flesh change in exchange for an eye.

Well if we are to follow the bread crumbs from the Siege of Terra .... Thousand Sons

Number one for me is the Fallen legion. They are mostly untainted by chaos and are working with the enemy out of desperation and little choice. Daddy Lion will come back, forgive them and lead one of the most massive and destructive crusades not seen for 10000 years. Or Asmodai could have a word with all the traitor legions and "redeem" them. He's a really nice guy.

Regarding Alpha Legion, I personally believe both Alpharius and Omegon are dead. The fact that the legion got shattered completely and that many warbands turn straight up to chaos doesn't give me any confidence that there's a living primarch of the legion still out there somewhere, guiding his legion. The Alpha Legion just became too much of a mess imo.

Emperors Children can be redeemed if the Noise Marines stop playing Despacito and Mambo No.5.

Well, I have always viewed the Alpha Legion as the best candidate for a redemption arch. But Also the Fallen from the Dark angles I would love to see Luther get redemption even if it kills him in the end.

If the Emperor made Magnus choose between his loyalty to his father an his loyalty to his sons, I can see the fact that Magnus chose his own sons as a kind of test - which he passed.

I still run with the head cannon that Perti is STILL loyalist, to a measure. Emps saw the coming of the Nids and Necrons and knew that chaos was required to merge with humanity to have the range of weapons needed. Which is how Emps got the chaos gods to give him the power to fill the primarchs with warp-stuff. Further to that, Perti's gift was all knowledge and the ability to see the Eye. These gifts made him the perfect candidate to be the Primarch tasked with entering the warp and bending it to the will of the imperium. Emps trained him and his legion to take on the foulest of tasks, and to hold no loyalty to the Imperium itself, but to the completion of the task at hand regardless of the cost. Perti knew what was coming so built himself iron guard without hearts because he knew his men would be fodder for the warp. But the games of the Chaos gods overtook Emps and the fall of Horus was not expected (or it was*) and so the task became moot. When the emperor eventually wakes up, he call up the greatest weapons that the combination of warp tech and humanity built with the hands of the architect.

The Alpha legion seems like a great choice, have it explained that very few of the more senior members that turned traitor survived the herasy itself, and the resulting alpha legion spent 10k years weakening chaos from inside. Eventually chaos got wise, and the loyalists send the corrupted on suicide runs against other warbands and comes pubicly back into the fold.

I was fairly certain he'd say "Dark Angels" for number 1 before starting

You forgot to mention Konrad Curze's soul gem. The crown that contains it could have been cleansed of the Night Haunter or sent to the Chaos Gods to become a Daemon Prince upon his death. Freeing him to come back as a more sane version of his self. With the Legion being divided between his two halves.

Imperium: Are you with us or against us? Alpha Legion: ...Yes!

Since your done with the redemption possibilities, are you gonna do a most likely to fall series??? Cause that would be awesome!

Something that I've kicked around in my noodle for a while now is that if the Thousand Sons did get redeemed that those without bodies could get absorbed into the Legion of the Damned or the Imperial Demons.

I doubt pertuarbo would come back. If he did he would have to unchain Dorn he keeps locked up in his basement. Would love the clone Fulgrim to come back as a loyalist.

The Dark Angels need redemption more than the Alpha Legion.

Regarding Perturabo, we know for certain that there was quite a lot of loyalist Iron Warriors during the Heresy. Heck, there are hints that there exist loyalist chapters within the Imperium that descended from the Iron Warriors. The legion didn't want to betray the Emperor. If Perturabo had a chance to talk to the Emperor after the razing of Olympia, I believe he would've remained loyal.

Perterabo redeemed?? >Never felt empathy for anyone ever >Was petty and spiteful and had to win at everything (destroyed the statues when his brother's was better) >Made his sons murder 10% of their brothers for literally no reason before even meeting them >Let his sons die by the thousands for fear of his fragile ego being hurt >Massacred his whole planet's civilian population >Murdered his little sister, the only person who ever showed him affection, in cold blood >None of this was influenced by chaos like Fulgrim was >Hated Rogal Dorn because he needed to be the best at everything because he was a petty manbaby Redemption implies that the person was once good but became bad or fell to evil. Perterabo was ALWAYS a petty, spiteful, egotistical, psychopathic douche. He didn't need chaos to make him what he was. There is nothing to redeem because he was never a good person.

Alpharius is almost certainly out there still. Robute killed one of their empowered legionaries like we know already they can do, and even he said it felt too easy. This pretty much proves to me alpharius is still out there. Possibly still loyal, possibly just insane and corrupted.

I think Perty can redeemed but then who gonna make Spicy Battery. Keep him in the traitor side is much more advantagous plus bro can research the Warp

In an Imperium with Flesh Tearers and Charcharodons... Can't we just give the Night Lords a chance.

Iron Warriors. Didn’t want to turn traitor. Have fought against chaos while falling to chaos. The emperor could easily offer Perty Dorn’s role as Praetorian of Terra and he would be chuffed to bits. Guilliman knows he’s not the chaos warped piece of shit like Morty or Angron and besides I’m sure Perty would be open to consistent heresy checks before receiving Primaris. All he wanted to do was create stuff and he could work alongside the Mechanicus to create new weapons of war.

From who is the art where the Night Lord is standing behind the guardsman with the torch? I really like that piece.

The truth is the Alpha Legion should have been number 9, but since it''s the Alpha Legion, the lie is it should be number 1, but the truth, should it ever be revealed is the actually the lie and the lie the truth, so in reality, they should have been

I’d love to see the Deathguard redeemed. I don’t believe Mortarion ever wanted to be a vassal of chaos he just wanted to run his legion his own way

Now make a “most likely to fall” set for the loyalists! Sorry lion, your top of my list there buddy

Damn! That was a good series and I'm glad you put Perty and his legion where you. I've always liked the 4th and believed they could be redeemed.

Morty, magnus, perturabo is my opinion to be redeemed. Alpha legion are still loyal.. aren't they?

FOR THE EMPEROR HYDRA DOMINATUS

Personaly, yes the Night Lords on first position, second Alpha Legion. Still not understand why they made Pert a demon....

I wouldn't put the Night Lords very high on my list even though they're one of my favorite Legions. After reading the Night Lords books, I've found that the VIII is too consumed by hatred of the Imperium (or anything that isn't torture for that matter) to be redeemed. Should Konrad return they could be reunited and become a big pain in the ass for the Imperium. The most likely is probably the Alpha Legion, but their lore makes my head hurt so I don't really have an opinion on them. If Magnus and Ahriman could be brought back to the Imperium and the random mutations in the Thousand Sons gene-seed be corrected, save for a few Tzeench believers the Thousand Sons could definitely return. Though it would be a very cold relationship. Personally, I would like to see the Iron Warriors return to the fold, hell they help the Imperium sometimes, and are the least Chaos-y of the Traitor Legions, if the Emperor forgives Perturabo and brings him back to his side, then the majority of the IV comes back and tactically they would be the most advantageous of the Traitor Legions to have back. Their logistics rival the Ultramarines, Perturabo is a genius when come to technology and siege warfare, and they are some the most devastating forces in the Milky Way. Plus having a meeting with the Minotaurs and their Primarch would be fun. I can only see some of the Deathguard return with Mortarion, and for the Emperor's Children with Clonegrim.

I'm gonna guess the top 4 before watching: -TSons: if Magnus gets his noble shard returned -Alpha: possible double agent loyalists -Children: Fulgrim might not have fallen if not corrupted...or fulgrim clone does something -Warriors: Perty prob just wants some gratitude Edit: 3 out of 4, not bad

i still think it wouldve been way cooler if Perturabo was the only traitor Primarch that was NOT a daemon prince.

The night lords wouldn’t trust anything from the emperor. Even if it was Cruze.

No forgiveness no Redemption for traitors and heretics only fire:)

And the iron warriors have always removed warp taint and replaced it with tech.

Konrad is coming back, one his sons has his soul stone

A thought on the 15th would be if the rubrics could be returned to life, would they stay with Magnus or would they rebel and seek redemption? Edit: and then I get to the part where Ro talks about it. 😖

This video has made me realize a crucial possibility. What if Wolf Lord Rho has been brainwashed by the Alpha Legion? He may not have claimed to be Alpharius but he certainly made this final list with absolute confidence. A trait seen in brainwashed victims of the Legion. Granted his evidence is pretty good.

But if the Alpha Legion gets redeemed, one of the loyalists has to fall. Which Primarch would be most likely to fall, or to has fallen already.

I believe that Fulgrim was never released from the control of the deamon. And that when the clone was created his soul found the pure vessel and that clone Fulgrim was truly Fulgrim reborn. His pure soul finally free from the warp. I also believe there are loyalist Emporer's children out there amongst the stars. And hidden in other legions as chapters. He is also the Phoenix. And a Phoenix is always reborn.

I like the pet theory that only one of the two Alpharius or Omegon truly turned but it wasn't as simple as one of them turned and the other went along with it but was secretly loyal as a spy. I think the one who took the lead in overtly turning the legion was secretly loyal and the one who was only supposedly going along with it as a secret loyalist, overt traitor was secretly actually a traitor. Plots on plots, twists on twists and layers on layers as the forces of chaos got to one but not the other and we can't know which. Nobody can know which was which. And even if we could know which was truly loyal, we can't know which is dead.

What about the loyal shard of Magnus? Wouldn't that have an impact?

I definitely wouldn't have the Night Lords this high. Sure they were designed as a terror legion but... they, like the Word Bearers (though not in a full switch to Chaos way) had fallen from the light as a Legion before the Heresy even started. As a fellow Lore Master noted "they can now do whatever they wish, to whoever they wish, whenever they wish" and they've always been predisposed to do so. Iron Warriors are tricky given they and Pertuarbo got a really rough deal in the scheme of things and have a very justified anger about it, though some of it they caused themselves by never speaking up, and for the Imperium that's almost worse than an outside corrupting force in terms of being able to redeem them. Though at the same time they're still loyal to Pertuarbo and aren't nearly as badly corrupted, mentally or physically, as other legions on the list. Thousand Sons strike me as the easiest of the Legions to redeem, since I think The Emperor undoing the Rubric would probably sway many within the Legion on the spot as many, though not all, are actively trying to save their Battle Brothers. Likewise Magnus only ended up falling because he tried to defend the Legion. Alpha Legion... to quote Monty Python "MY BRAIN HURTS!".

Alpha legion will never be redemed they have never do something wrong. It was part of the plan ! Hydra dominatus

Man I'm 180 out of phase with the community. I thought Fury of Magnus was terrible. Inconsistent characters.

Thank you for getting to the point rho

The simple answer is that none of the traitor legions can be redeemed except the Thousand Sons as far as the major legions go. The Deathguard, World Eaters, Iron Warriors, Word Bearers and Emperors Children are just way way too far gone and mutated beyond redemption. You could say that maybe the Red Corsairs would be possible as they run under the chaos undivided banner. Though the Black Legion are also chaos undivided I don't see them turning back either. The only real traitors that will probably make the jump back to true Loyalist at some point is the Alpha Legion. We know for a fact there's still Alpha Legion who are loyalist, especially after finding out that the true first found was Alpharius and not Horus, found early enough to be raised by the Emperor and told he was to infiltrate all the other legions and do whatever it took to protect the Imperium. Like I said, all of the other legions are far too mutated and corrupted for them to be brought back. It's possible the Emperor could cleanse the traitor Primarchs of their corruption but there's no reason to heal/fix the fallen astartes, might as well just get rid of them and make new ones from uncorrupted gene seed. That's just how I feel about it though, love hearing the perspective of other people. *Fuck Erebus btw*

God I love the Alpha Legion

But...but...the Alpha legion isnt a traitor legion they're ]*//*[ALPHARIUS]*//*[

Spoilers! @ @ @ @ @ So close! I guessed 4) nightlords 3)iron warriors 2) 1000 sons 1) Alpha Legion I get why magnus is lower than second but still disagree with him being lower than nightlords

You keep saying Alpharius is dead, but the one who was killed by Dorn was using two pieces of wargear that Alpharius never did. The Xenos Pale Spear, and the Xenos Scaled Armor. Both of which were Omegon's. Also there's the slight possibility that it was Kel Silonius who died on Pluto. Either way, all evidence shows that if a Primarch died on Pluto, it was Omegon, who was always the public Primarch, and not Alpharius. Only Dorn would truly know, and even then Alpharius said that Dorn was the easiest of his brothers to fool.

Bringing back Kurz? Every single one of them would default back to the imperium out of fear of him. Iron warriors? They felt more like they would still be anti-imperium. As for the last one? Hard to say as you could claim half of them joined to sabotage the forces of chaos and the other half joined in purpose.

I think any of the legions whose Primarchs have become a full Daemon Prince are past redeemtion. They've just gone too far. They won't go against their Primarch, and their Primarchs have become a literal extension of their Chaos Gods. That leaves just two options, really. The Night Lords and the Alpha Legion.

I suspect 'Alpharius' in the Bequin novels is actually Omegon. Why else would he personally be assisting Eisenhorn/ Ravenor if nothing else than to directly combat a threat against the very idea of the Imperium. Besides, who else could go toe to toe with Constantin Valdor than a Primarch?

I would say the best choices for Traitor Primarchs to return to Loyalist? Honestly our best bets. 1. Magnus 2. Mortarion 3. Perturabo 4. Angron

Nr. 1 is the iron guard because they hate all god's and they just feel betrayed by everyone. Nr. 2 is the thousand sons under the conditions that Magnus gets his missing soul shards back. We should not forget that Magnus is literally missing his "Loyalty shard" and the problem with the space wolves is because of Horus deception. Nr. 3 the Alpha Legion they could be very well the ultimate spy act.

Really interesting video. Considering that Rho allowed for a potential rebirth of primarchs, including recreating them in a second primarch program; I am a little surprised to see Angron right at the bottom. Angron was absolutely a victim of his circumstances. Imagine Angron without the butcher's nails, and imagine if he had not been forced to abandon his gladiator brothers due to the Emperor's meddling. I can see him being a completely different character, though also a character that we have essentially no knowledge of. He would be an entirely different person. I would most like Curze to be redeemed though. I feel like it could actually be done with the current lore (his soul in a soulstone in the crown, and the precedent of Vulkan being cured of insanity after being reborn), and that it would add a nice twist without completely ruining the long-running story lines. As likely as it is that the Alpha Legion are secret loyalists, it would damage the overall story to have them become loyalists in the era that we play in, as it would take away all of the mystery and essentially force GW writers to 'explain everything'. For all the other characters, it is simply too unlikely that they will ever be in a situation where they can be reborn or redeemed. I do like the idea of an Eldar prophecy about Lorgar realising that he was tricked and in his ascended daemonic form comes back to save humanity; but having that actually happen would ruin the current state of the game too much. So back to Curze; bring him back, have him accepted by Guilliman despite him being VERY uncomfortable about it, and still have half or more of the Night Lords remain 'traitor' because they are too far gone or love their freedom or whatever (which allows everyone to keep playing their armies!). Curze could even get in some nice quips about how he was right about the Emperor being wrong, a fool and a hypocrite, (in private obviously) but still ultimately siding with a pure, justice-oriented and law-abiding mankind. I can even imagine him and the inquisition getting along well with their brutal methods, and that causing an interesting rift between him with the Imperial-establishment, and Guilliman who sees it as backwards, barbaric and against the Emperor's vision, but who nonetheless accepts Curze out of necessity. I would still prefer it if we had no primarchs return, and I think the books have gone too far in giving us glimpses into their personalities. I preferred it when they were these semi-mythical characters that we could never truly know, but who inspire us through the little snippets that are remembered of them. As we have them returning though, Curze is the best candidate for a redeemed primarch!

Curze would easily reunite the VIII Legion if he came back. The Night Lords still miss their father and desperately want to make him proud. Nothing would prove him right more than returning to the Emperor's light. _Death is nothing compared to vindication._

I think the Word Bearers are the most likely to be redeemed. They have always venerated the Emperor as a God, and I think the "Lectitio Divinitatus" still forms a central part of their psyche. Their journey very much mirrors the Ba'hai beliefs, where each iteration of faith has been led by a different prophet - Abraham, Jesus, Muhummad - each evolution taking humanity further along the path. The initial denial of divinity, the fall to chaos, and then subsequent acceptance of the Emperor as a true chaos god may lead the Word Bearers to renounce the ruinous powers and dedicate themselves to their original, true God. I wonder if the Emperor manifesting "miracles" more and more, and literal "Saints" flying about, if the next stage is for the Emperor to actually die, and ascend to true divinity - an action that redeems the Word Bearers and "cures" Lorgar - as Lorgar would then be canonised as a prophet, not a heretic.

I’m thinking Konrad would be 2nd. Seeing how death cured Vulken’s insanity, I feel Konrad allowed his death to potentially cure himself. Perhaps his soul in a Eldar soul gem, needing a body to take over or operate like a wraith. But that’s just my opinion and theory. Alpha I think is already redeemed and is doing spy work for emperor even if the loyalist do not know. The rest of your list is solid.

Honestly the Iron Warriors and Alpha Legion are the best and obvious choices. I will say I think the Thousand Sons are above the Night Lords as the terror lords don't have a Primarch leading them and without Konrad coming back and pushing for it or a re-emergence of Sevetar bringing the Legion back together but that's debatable way as he hates the Emperor.

Im sure Omegon is dead and that Cyoher is Alpharius. After all Alpharius was the first Primarch to be found, not Horus. The only thing I would change here is Mortarion for Peterabo.

Before watching im gonna guess (in no particular order): Alpha legion, Thousand Sons, Night Lords, Iron Warriors

Magnus chose his sons over his father. Showing that he was still noble. If Emps were to reverse the Rubric and save Magnus' sons, he'd pledge his loyalty instantly. Magnus to me is the Primarch who most sees his Legion as his family. Losing them was not an option, so he rejected his father. His father saving them would break the hold Chaos has on him.

I thought Dark Angels would be number one most likely to be redeemed.

Well for the night lords you defo got a point, pure gene seed, chaos at bay and in addition to that: they were the least murderous in term of body count with the alpha legion in comparison to the other legions. Vulkan is nice alright, he also has a kink for napalming people. Conrad is not cool because he likes to have after school vivisection studies, however he didn t genocide entire planets so if one thinks in terms of humanity: which approach is best ? As a last thought: Perty, Morty, altarboy, Conrad and Angron: Could the problem lies in the emperor himself and not in his sons ? Hiding your mistakes through a " you were made like that" sounds like a man, because the emperor is a man, that has it bitter and tries not to lose his face. And concerning the Alpha Legion, their emblema has 3 heads, could the big G be the third head ? brothers and twins..

I'm sorry but the kruzes story is unbelievably sad and I think the knight Lords could be saved, maybe if the clone was made manifest

I like the prospects of Kurze being redeemed and brought back to what he was suppose to be. What that is would be very intriguing. Maybe an assassin with a blind sense of Justice.

Nope. I'm sorry but if the iron warriors get redeemed I'm going to start a holy crusade against games workshop. Screw those guys.

The Alpha acting openly? I'm sorry, my Suspension of Disbelief took a hit there.

Pertarabo should not have became a daemon prince it doesn't fit his character at all and goes against his character. The Lord of Iron dispised what his brothers became so why make him become what he hated. I say this but my favourite Chaos legion is Nightlords

What about the 10th traitor legion, The Fallen? Just because GW has done **** all with them doesn't mean they don't exist!

The ultimate balance breaker is perturabo. He probably the only one who could fix the astronomican and maintain the golden throne. With those fixed the emperior could finaly begin to heal

Perturabo. " We could turn loyalist again but only if the yellow imperial chickens turned traitor"

fascinating series. but what about the reverse? which of the Loyalists are most likely to be Corrupted?

Of course the Alpha Legion is number 1 on the list. They ARE loyalists after all...

There is a theory that cypher is loyalist and is the alpha legion brother that ppl think is dead

Why would the Emperor be willing to try and redeem the thousand sons now, when he would not even bluff towards it 10k years ago?

The Alpha Legion were always loyal. I mean what? Nothing!

I like the idea that that alpha legion follow the same path as snape does in HP. They were never disloyal, they were willing to do what no other chapter would. They would go to hell... For the emperor. 🙂

The lord of Olympia deserves more respect on his name. The legion is quite warped and fucked ngl ngl.

i think mortarion and the deathguard should move up to the nightlords spot and switch them. Mortarion is in a much better position to turn against chaos especially after events of godblight where he is no longer the darling of nurgle and saw emperor is still very much capable of kicking some ass despite being called a corpse. A teamwork with Isha to screw over nurgle would be cool. i feel that while he wouldnt serve the emperor he would go out with a bang to do as much damage as possibile to chaos out of pure spite. The nightlords dont want or seek redemption nor do they suffer nearly to the degree like the deathguard do who were basically forced into chaos service. the nightlords rebelled because they never had a true love for the imperium in the first place and acted like the tools they were using the tactics they were almost encouraged to do by the emperor for making them that way.

I don't think iron warriors should be so high based on the daemonculaba incident or whatever those things were called that they used to breed more marines. The legion seems firmly chaos and fucked up