The blood falcons, is a successor chapter of the 2 founding of Loyalist iron warriors, they call themselves the blood falcons due to them feeling ashamed of their legion, becoming traitors.

Warcry: from the pits of the warp, to the glory of battle!

Marines: 100 (currently rebuilding)

Home world: fleet based

Chapter Master: jimmy silfer

History.

War of the beast (544.M32)

War of the Beast is where their hatred for the orks began due to the orks, warping out 9 companies, almost getting warped out and needing to leave due to them having little numbers to contribute.

The dark star crusade (156.M40-170.M40)

This was a crusade, to take back imperial worlds from the orks. The crusade was led by the Doom Eagles, and assisted by blood falcons, Astral Claws, and the Fire Angels

The blood falcons would take back 4/23 worlds from the orks, but would lose 650 marines trying to take back soloia; the battle for soloia lasted 3 years until they finally took it.

They would play more of a supporting rule for the rest of the crusade due to their low numbers.

The trystar atrocity (200.M40)

The blood falcons will on their way to attack the dark elder, would get stuck in a warp storm causing their entire chapter to get trapped and be considered the last.

Will in the warp the blood falcons world have to turn to extreme measures such as eating their dead marines, killing the weak marines, and almost never sleeping.

After 343 years of torment, they finally managed to get out of the warp, but at the cost of 750 marines.

The Rainbow wars

The first Rainbow war (829.M40-834.M40)

The Rainbow wars was a war between the rainbow warriors, and the blood falcons, the war began due to the inquisition finding out the rainbow warriors had 2,500 marines and defining the inquisition multiple times, and inquisition threatened to reveal that the blood falcons to be an iron warrior successor chapter.

The first battle on the rainbow warriors home world Prism, was the Kharonix atrocity, the blood falcons showed no mercy killing 500 rainbow warriors, and the rainbow warriors only killing 48 blood falcons.

The rainbow warriors would hold back the blood falcons just long enough for 50 rainbow warriors to escape as a contingency plan in case the rainbow war was lost.

The blood falcons would assault the rainbow warriors fortress-monastery, in order to destroy their gene seed, the assault would last 13 weeks with the blood falcons palling back due to them losing a lot for very little gain.

After the assault the war would go cold for 4 years until the rainbow warriors would launch an assault on the blood falcons main base on Prism, and would take it from the blood falcons, and then would capture the survivors and would hold them hostage.

The Rainbow warriors give the blood falcons an option, leave Prism and they would release the blood falcons, or they would kill the blood falcons hostages, they would choose to leave Prism and take the blood falcons hostages, in order to plan, to wipe out the rainbow warriors ending the first rainbow war.

The second rainbow war (840.M40-850.M40)

After the blood falcons rebuild their chapter, they would request the Doom Eagles to help out, as they had become close after The dark star crusade, after this the plan was that the Blood falcons would provide air support, and the Doom Eagles would be on the ground.

The war started off with the Doom Eagles deploying 3 streak teams of 6 on one of the rainbow warriors main bases of operations, while the blood falcons gave close air support.

After the battle they captured a rainbow warrior, in order to get info on the rainbow warriors.

The rainbow warrior revealed that they had over 5,000 marines also they had opensorbed a rainbow warrior successor chapter, and the dark snails into their ranks.

After this the rainbow warriors would launch an attack on the blood falcons a Battle Barge, with 3 strike cruisers, and 1 of their Battle Barge’s the battle ended with the blood falcons Battle Barge being destroy, with it only destroying 2 strike cruisers, and damaging the rainbow warriors Battle Barge.

During the battle between the Battle Barges, the Doom Eagles would plan an attack on the rainbow warrior fortress-monastery, and one of their armories, but the plan would not go thought for a while, because due to the blood falcons wanting to attack on an Xolotal witch was a base that was training their own imperium guard, known as “the rainbow knights”.

During this a 20 rainbow warriors would give info about the rainbow warriors, and that they had 6,000 marines, but due to them having little resources they had to use old power armories such as mark 1 thunder armory.

After this the rogue rainbow warriors would attack Xolotal, the attack was a success but the cost of their lives.

The Doom Eagles, and the blood falcons would launch an attack on the rainbow warriors fortress-monastery, the attack lasted 17 weeks before the fortress-monastery fell and 4,500 rainbow warriors surrendered will 500 would keep fighting, the rainbow warrior chapter master joseph johnson, would succeeded from the imperium, pledge allegations to the chaos gods, and then flee into the warp ending the rainbow wars.

The fall of the blood falcons (122.M42-123.M42)

When the blood falcons got Primaris marines, they viewed them with suspicion, even killing some, eventually the primaries blood falcons and asking the first born for answers, they got none.

After 10 year the primaris had enough, and decided to fight back, by not going thought with order, not help the first bron, and killing the first born.

Instead of treating the primaris, the first born would go to war with the primaris.

The war only lasted one year before the inquisition would send the Minotaurs to end the war.

At the end of the war only 172 marines

survived, they would be sent on a 100 year penitent crusade.

Blood falcons penitent crusade (123.M42-223.M42)

Not much is known about the Blood falcons penitant crusade, except all the first born, and chapter master died, and that they fight orks for the most of it

I see various things on here - articles, a few paragraphs, stories, codex-style info boxes, infographics, etc. What do you prefer in other peoples' stuff? What makes you decide you want to read something? What makes you decide you want to give feedback?

Chapter Master: Lord Captain Palamiel Zolo El'Cid

Reclusiarch: Chief Chaplain Myrdid Took

Chief Librarian: Galridian the Bard

Chapter base: Fleet Based with a network of planets near the Maelstrom

Purpose: Anti piracy action. Raiding, counter raiding, and decapitation strikes

Chapter symbol: Three red swords pointing down

Chapter History: Part of the 26th founding, it's origins could be found as early as the Great Crusade, where the ruler of the world Cid Majoris system had personally dueled the paladin of the 9th order, Corswainn, for the fate of the world. Upon losing, the then King of Cid Majoris had sworn alliegence to the Dark Angels and had become a recruitment world the first legion.

It wasn't until around the 26th founding where a captain of the dark angels and a former death watch veteran Palamiel Zolo El'Cid had made requested the permission to start a new chapter to defend his home world, and the surrounding area, from Druukari raids. Seeing this as reasonable request for a loyal world, the then Supreme Grand Master granted him leave his hand picked choice

After the start of the Badab war, the Lord Captain saw an opportunity: his influence could be expanded were he offer his services to the lords and rogue traders on the border of the maeltrom. Many agreed and the Black Concordance was signed.

The agreement stipulated that the in return for a small honor-guard being granted to the local lords and the advisement of fleet defense, they would grant the Lord Captain all the resources he needed to wage wars against various xenos in the area.

This concordance also holds a second benefit: As the Lord Captain is completely loyal to the Imperium, it allows him to perpetually hold a dagger to the throat of those who would potentially wish to repeat Lord Huron Blackheart's mistake

Divisions

Operating under a simplified and modified iteration of the hexagrammiton to account for the difference in tactics used by the Black Paladins.

The Black Army

Made up of the the rank and file, such as intercessors with the the more elite and capable being granted heavier arms and gravis armor. Their coloring features black armor with a left bone colored shoulder and a bone colored face plate. The beige paint is made from from the bones of the fallen and is applied when a scout is promoted to full battle brother.

The Blackguards

The name for the 1st company, featuring expert marksmen and swordsmen, they are granted permission to where the ancestral green of their origin chapter. The higher ranking and more dedicated sniper skill teams are allowed burgundy in their robes.

Commanders of the chapter wear a mix of forest green and burgundy.

The Black Canaries

The vehicle division. Similar to the ravenwing, the black canaries operate under a similar organization of their origin chapter, what marks them as different is that the black canaries make use of heavier vehicles as the lighter and air vehicles being used as escorts.

They are marked by both a bespoke yellow stripe and a whistle that cries the faster their vehicles go.

Recruitment

The Black Paladins make frequent use of tournaments to recruit. This serves 2 purposes:

1. It grants them a propaganda machine to keep them in the good grace

2. It allows for the steady recruitment of promising young boys into the chapter.

So I don't have a color scheme or a Name, just some basic lore. All the inspiration or ideas for color schemes is welcome and if you got Ideas for lore than please tell me

Here's the basic lore

The ... Are an Space Marine Chapter of Unknown Founding. They don't know it because their Chapter Fortress was attacked by an Chaos Marine Warband and all the Information was scattered around the Galaxy. The 3rd Company of them the "Seekers of Wisdom" search throughout the Galaxy for the forgotten Relics.

The Veterans of the Chapter have their Armor covered in an different Color then the rest of the Chapter

All this Lore is just the Basis and if you have better Ideas I wouldn't have a Problem changing it

Hey guys. I'm working on the lore for the custom chapter color scheme I'm painting up. I have some details, but haven't quite locked in the origins and am playing with a couple options.

Starting off they are void based, and have a battlebarge as their chapter headquarters. Their main quest is to find and recover their missing primarch. In some versions I have this quest bestowed upon them by Guilliman. I'm not sure how well that meshes with the lore but the rough idea is "listen running things is hard. I need all my bros back. Here is supplies and support. Now go find your Dad for me." Or I might just go with the standard "Our chapter wants its primarch back. New chapter task force find Vulkan/khan/corax/russ authorized." My craziest version which might not fit at all is that this is a "deathwatch" situation where Guilliman arranged for remnants from each of the missing primarch factions to band together to search for all of them. Admittedly this is mostly justification to collect each of the chapter specific type units and have them be compatible in my head (much to the discomfort of my wallet lol).

Dor Salamanders specifically. I like the fire weapons and blacksmithing vibes. I can totally make use of an upgrade sprue as I go. I know part of the lore is Vulkan promised to return when all of his artifacts were recovered so that seems to be very compatible with my other idea. I also use pops of orange in the color scheme (mostly corax white and lothern blue) so I feel that pays some homage to the salamanders while still being their own unique thing.

I'd like to know more about the artifacts left behind. What has been found so far. Are all salamander gene seed holders that dark black, or is that just because of the homeworld? Additionally I'm still new to learning the game. If I went the Salamander origin direction I would pick up the two hero characters, but kitbash them slightly. Just enough to have them work fine on the tabletop as "this is clearly Adrax rule wise, but his name is actually Jeff Mcbossman" So to that end what exactly is what Adrax and He'stan able to do gameplay wise?What units do they like to lead so my kitbash design follows the spirit? ELI5 please best as you can.

For Raven Guard and Corax Specifically I honestly don't know enough about the phobos style marines to know if they'd feel cool to specialize in. I like the jetpacks and the idea of infiltrating into the ships I board and areas inland in and the. Following up with air support. For the primarch recovery I don't know enough about the warp entity Corax has become to know what bringing him back would be like. Color wise I use corax white heavily as the color scheme so I feel they would fit visually. Hero wise looks like both their unique characters are on jetpacks and I do like the idea of running jetpack heavy forces. Being void based that just makes sense. I also really dig those reiver skull style helmets so that could be a boon.

For the White Scars I feel it also fits visually with my majority white color scheme. Roaming the stars in our ships also seems to fit with the way their chapter operates. Khan also feels like one of the more recoverable primarchs of the list. I'm unaware of the return lore though. Is there any clues or indications in lore of how his return will go? I also think that hover jetbike is cool as fuck along with other hover tech. Not as big of a fan of the wheeled bikes though. So similar to the other two ELI5 the Spirit of how their two heroes buff their team. I also think the whole Mongolian vibe also is visually cool and unique, but worry about the availability of bits.

Typing this all out it does seem I lean a little toward Salamanders just from the amount I've typed. This is probably more just by chance of coming across more of their lore and thinking I understand the rough idea of how they play (buff the flame and melta weapons and excel in this not close range not long range zone).

The Wailing Locusts are a Space Marine Chapter created during the 21st Founding, formed from an unstable and highly unpredictable gene-seed line of Jaghatai Khan that produces extreme recruitment attrition and psychological volatility among its warriors. Operating from their mobile flagship and fortress monastery, the Sunderer’s Watch, they maintain a unified, constantly mobile fleet that never divides into separate task groups.

Their full fleet consists of, 1 Legatus-class Battle Barge, 6 Strike Cruisers, 2 Vanguard Cruisers, 8 Hunter-class Destroyers, 6 Nova-class Frigates, 6 Gladius-class Frigates, and 1 Mechanicus Forgeship forming a balanced strike force capable of sustained void warfare and rapid planetary assault operations.

In combat, they are defined by extreme speed and overwhelming shock assault tactics, striking with rapid mechanized advances before collapsing into sudden, brutal close-quarters engagements, often reinforced by Dreadnought drop pod strikes used to destroy key enemy infrastructure before immediate exploitation. Their philosophy is intensely pragmatic: momentum is sacred, results matter more than ceremony or glory, and war is treated as direct, efficient work carried out by loose, mission-bound “posse”-like brotherhoods where reputation is earned through performance and survival rather than rank or formal structure.

They show little interest in prolonged occupation or governance, instead focusing on breaking enemy forces and moving on, with Imperial Guard formations typically handling civilian evacuation while the Chapter concentrates solely on eliminating hostile threats and creating safe corridors through violence.

On the battlefield they are feared for their predatory, near-silent aggression and sudden explosive violence, but their genetic instability can trigger catastrophic psychological breaks, resulting in uncontrolled wailing, crying rage, and violent emotional collapse rather than disciplined battle fury. To cope with this, they employ strict internal discipline and controlled release of aggression against lesser threats, while suppressing all such breakdowns during engagements with truly dangerous foes. This instability, combined with severe recruitment failure rates, strict culling of aspirants, communication difficulties, and breakdowns in unit cohesion under stress, ensures the Chapter remains small in number but devastating in effect—an unpredictable, fast-moving force of relentless momentum and tightly controlled brutality that is as unsettling to allies as it is lethal to enemies.

(Edit: the chapter does have a light cowboy/frontier vibe, as i based them specifically off the now extinct rocky mountain locust)

This homebrew is nowhere near finished, i just need to know if this is a good start or what might need to change.

This narrative is the original chapter idea I had years ago, written as an exercise in bending established lore rather than breaking it.

Now that I’m actually building my first army I’ve tried changing it to be more lore friendly / preemptively avoid certain discussions, but I keep coming back to my original chapter idea.

-

The Death Stallions were a noble chapter of Space Marines who prioritized the extermination of traitor chapters, whether renegade or Chaos, above all else.

After a long campaign defending trade routes and answering the call to support their fellow loyalist chapters they had grown small in number. When they went to replenish their ranks their gene-seed was discovered to have a flaw.

Almost every new recruit died of extreme blood loss soon after, if not during implantation. They feared it to be corrupted by Chaos and demanded replacement from their parent legion.

“If the Emperor deems your chapter worthy,” The High Lords of Terra said, “it will succeed.”

They were told to retreat further to find suitable recruits that would accept their gene-seed’s new flaw or accept their fate.

For years they searched in a cycle of recruiting, inducting, and watching aspirants die a horrible death, until finally finding a long forgotten system with poor resources and no strategic value. The larger of the system’s two planets, Triton, was a dead world of stone, salt, and ash. What brought this system to Death Stallions’ attention was a unique atmospheric marker of the smaller planet, Gorgon, that seemed to fit their gene-seed’s flaw like a puzzle piece.

Descending to the planet they expected to find nothing but mutants to purge. Instead they found tribes populated by nearly feral warrior women. The marines demanded their strongest children, and were presented girls. Tall and broad-shouldered, but girls nonetheless. They passed them over and clarified it was their sons they sought.

Each woman to the last raised their primitive weapons.

The only thing stopping the Astartes from wiping them out was an old crone who walked between the opposing lines of raised weapons and told a tale of the paradise in the sky having sent a curse that decimated their men.

Their atmosphere was swimming in an irradiated virus that attacks male mammals with a nearly perfect mortality rate, causing bleeding from every orifice.

Some die quick after birth, choking on their blood and bile. Most die slowly.

With only an estimated 5% of male infants surviving the virus they are too precious a resource to surrender, even to the armoured giants.

So their gene seed’s flaw was not Chaos.

It was sabotage.

Debate washed through the Death Stallions’ command. Should they set off and fight in a final glorious battle, ultimately snuffed out and replaced by another chapter, or do the unthinkable and attempt to induct women into their ranks?

“It has never been done. It is heresy!”

“It has never been done because it has never needed to be done.”

The eons of isolation, fighting fearsome reptilian and insectoid beasts shaped the women of Gorgon into tall, fast, and well muscled fighters.

With the appropriate work on their remaining gene-seed and a catalyst to marry it to the female frame they had a way to make a new recruit, if one was worthy. And they found one. A brutally tough girl who had promise to be her tribe’s fiercest warrior yet.

Battle brothers doubted she’d survive the aspirant trials.

She did.

They said she would never survive the implantations.

She did.

They said she would fall on the battlefield.

That, she did not.

She fought side-by-side her new brothers, all but disappearing among their ranks in her power armour.

One final naysayer remained of the old guard who belittled her origin and stock at every opportunity. After a cleansing bath following battle he again shared choice words regarding the recruit.

“Would you shut up,” she said finally. “I’m as strong and capable as any of you, but you’re acting as if my dick is bigger.”

All held their breath, expecting a brawl. The naysayer cracked a smile then roared with laughter and slapped her shoulder heartily.

It was settled to a man. They had found their Chapter home world, establishing a monastery to recruit from among the fiercest girls.

They also travelled between worlds as if still a fleet based chapter, recruiting boys to seed Gorgon with new breeding stock should they survive the atmosphere.

The Death Stallions fight side by side other chapters against the enemies of mankind who have no idea there are any women inside the power armour, seeing only fellow brothers in arms. Only if and when their helmets are removed would they be discovered for what they are.

They resumed their gene-seed tithe, henceforth marked as a dead end worse than that of any legion.

“How is it you can use this?” The High Lords inquired.

“By the Emperor’s will.” The Chapter answered, offering no further explanation.

"How do i measure that??" You may ask, but it's actually pretty simple, are there any precedent for it in the lore? then it most likely is lore friendly.

Though there are of course things that are kinda on the edge

This will of course require some self reflection

Lets go with a scale from 1 to 5.

1: Straight up breaks the universe, this would be anything that directly contradicts fundamental laws, major historical events, or core faction traits of the setting.

2: Extreme Stretch, It could theoretically possible under unique circumstances but contradicts normal faction behavior.

3: Plausible, Fits within the vastness of the galaxy but relies heavily on rare exceptions or loopholes.

4: Lore-Accurate, Has perfect alignment with current codices, novels, and established universe behaviors.

5: 100% lore friendly, it integrates obscure lore fragments, handles nuance perfectly, and captures the bleak tone.

Note: Even if you are at 1, that is completely fine.

I would put my Chapter, the Swag bears, at worst, at 2, and at best, at 3 or maybe 3.5, The biggest problem is their name but i have explained that pretty well i like to believe, but there are also the fact they are a pre great rift Space Wolves successor, and they are very kind, and there is also the whole Ursinen thing, which are basically wulfen, but bear.

And again, i already mentioned it once, but i wanna be super clear, it's okay if your homebrew is not lore friendly, you can have a female space marine chapter, you can have a chapter that are best friends with xenos, you are allowed to have that.