30K: Using Allied Detachments in Horus Heresy

blood angels captain chapter legion
It’s Black Blow Fly and today I talk about building an allied detachment for your Horus Heresy army.

It’s Black Blow Fly swinging through your neighborhood again to spread some mischief and discontent… heh ! The new Horus Heresy book Inferno will be out soon with rules for the Emperor’s Talon, Space Wolves and Thousand Sons – yes we live in exciting times. Today I talk about building an allied detachment for your Horus Heresy army and provide a simple example. The example given is a Legion but it could be Mechanicum or some other non Legion faction. This can be a fun little project if you need a break from working on your primary detachment.

Adding an allied detachment to your main force is a good method to spice up your army and shore up some new abilities. I’ve always been a big fan of Blood Angels and love what they’ve got so far for the Horus Heresy. While Blood Angels as a Legion do not have a full set of rules yet with special characters and special units they do have their own Legion rules and some special wargear, both of which are full on win ! I have built the following allied detachment to fight along side my main force.


Consul – Chaplain (Hatred, Fearless & Fear)
Jump Pack – Artificer Armor – Inferno Pistol – Melta Bombs – Blade of Perdition

Jump Pack – Power Sword

9x Assault Marine – Jump Packs – Power Axe – Power Sword
Sergeant – Jump Pack – Artificer Armor – Inferno Pistol – Melta Bombs – Power Fist

Leviathan Dreadnaught
Ceramite Armor – Extra Armor – Phosphex Discharger – Grav Flux Bombard – Siege Claw w. Built-In Meltagun – 2x Assault Cannon
Dreadnaught Drop Pod


Note that I run a Knights-Errant from Horus Heresy Book VI as an HQ for my main Heresy army with a jump pack and narcethium who joins the combined BA squad (Chaplain, Apothecary and Assault Marines). They can deep strike together, do not scatter and can only be snap fired by the enemy the turn after they arrive… so you can put them in a key location and they are very survivable. The Knight-Errant is also a level 2 psyker whom I use to cast blessings on my army. The Blood Angels combined infantry unit are actually designed to hunt armor primarily rather than melee versus enemy combat units. Of course being jump infantry they are very fast which combines well with my main army. They can pick off weaker enemy units such as tactical Marines if need be.


We all know just how great is the Leviathan now – he comes down turn one and is a dakka monster the first turn… more so with the pair of assault cannons. It’s a great distraction and can draw the heat off from other units. This build is often referred to as the Death Blossom for good reason.

I’ll next be adding a fast attack unit – a pair of Javelins which got a really nice boost with the release of the latest rules for Legions. The main thing is to have fun and it can be a rewarding feeling to complete a relatively small project.


~Black Blow Fly out!

  • Matt Schrieber

    That is not build that the term Death Blossom refers to. Death Blossom is with two Leviathan Storm Cannons, Phosphex Discharger, and you are in a Dreadnought Drop Pod.

    Also, please don’t bring this kind of mindset into 30k. Death star units with 3 characters in them, across multiple detachments. And I can’t help but think the only reason the ally detachments exists is just so you can get a Leviathan with Assault Cannon.

    • SilentPony

      Also I’m pretty sure the whole ‘assault canons built into dreadnought claws’ thing wasn’t was FW meant with that rule, and it’ll soon be FAQd. I mean they meant infantry, terminators and support squads, not 4 armed dreadnoughts.

      • Jason

        We’ll have to see. It’s been just about a year now (Book 6 came out early February) and they still haven’t done anything about it.

        Also, the leviathan gets its assault cannons on it’s chest (nipple guns) rather than the arms.

      • It’s all about being fluffy .

    • Mitchell

      3 character FNP fearless etc. Squad……. meet my typhon 🙂

    • It’s not a Death Star at all Bubbles. Many units can wreck this build. Izzit fun… Yes.

    • Blood Angels are my love f00

      • Loki Nahat

        doesnt really matter, if you’r not getting the naming conventions correct

    • Anyone so uptighted about a moniker needs to take a moment and genuflect.

      • Matt Schrieber

        You really are a troll. You were wrong, I corrected you. I didn’t expect to be personally attacked for that part of my comment.
        First time I ever commented on anything on bell of lost souls, and I think this will be my last knowing this is how the actual authors treat their readers.

        • DaveTycho

          Don’t let BFF get you down too much. He is an obvious troll though. He attacked me too for pointing out flaws in his article, but those attacks have been edited out after I flagged them. You should not, EVER, be made to feel like you can’t post an opinion because someone attacked you for previously voicing one. That being said, please remember this: that there is no greater pit of scum and villianry than the BOLS comments section.

          • His comment is along the lines of “Thin your paint” imo .

  • Mitchell

    Leviathans aren’t as effective as they seem 2 Cortus or 2 mortimortis are always a better option imo

    • OldHat

      Um…. Leviathan is hands down the best dread in 30k. The Drill, Phosphex, Flamers, and the CML or GFB… just so good. A basic Cortus is cheap, but just doesn’t hit nearly so hard.

      • Mitchell

        At the end of the day it’s one model, one target. If you add a dreadnought drop pod it gets ridiculously expensive. I’ll take a typhon instead any day or a primarch.

        • OldHat

          And a Leviathan can kill either of those, depending (drill or claw). And they are a heavy slot, not a LoW. And a Typhon can’t drop pod into CML range and wreck a Knight. Basically apples to oranges comparison is my point. It is a great dread and overall solid unit.

          • I love my blooming Levi !

          • OldHat

            What makes your statement so incredibly strange is that my actual name is Levi… so… <3 U 2?

          • That’s cool ! 💜

          • Mitchell

            The point I am trying to make is that leviathans are by no means a game winning solution that a lot of players make them seem to be. There is nothing cheese about the leviathan, Especially at close to 😩400 points or so…. I feel like they are balanced well in the game of 30k unlike certain units such as the typhon imo. Mabey that is just because I use large blobs…

          • OldHat

            Whereas the Typhon is far less threatening to an army that can neutralize it fast. D weapons can insta-kill it and a Kraken Primaris will tear it up. I think it says a lot about how balanced 30k is currently that not one thing is a no-brainer auto-include in every list.

          • Mitchell

            And that’s why we love 30k so much!

      • Yep it’s a fact.

  • wibbling

    This is just a desperate effort to cheat the game for advantage. Stop it.

  • Jason

    It’s dubious at best if an attached knight-errant confers the no scatter deep strike onto a squad as well as the snap-shots/disordered charges against the unit.

    The rulebook states that IC special rules are not conferred to their unit unless they specifically say so. Since By Falsehood Cloaked makes no mention of an attached unit, I fairly certain it wouldn’t come into effect if he is attached to the unit.

    • Crablezworth

      Agreed, in fact you completely remove his ability to do that by placing him in a squad.

      • Knight_of_Infinite_Resignation

        BBF cheating again? Quelle surprise.

        • Someone else in my group did it first and everyone was okay with it.

          • Jason

            That’s fine if your group wants to play it that way. However that’s not how the rule for this works and writing an article on it as though it’s correct is the problem.

      • That only applies to rules like furious charge. I asked FW and they said I’m right.

    • You has to snap fire at him. I guess you could use precision shots to pick off teh grunts.

      • OldHat

        The Snap Fire effect would cease to apply, as he joins the squad and loses the special rule, right?

        • Jason

          Correct. You’re firing at the squad who the independent character joined. The independent character’s special rules don’t apply to the squad unless it says it does.

  • Jonathon West

    Minmaxing in 40k is a huge part of why I left it behind….

    • ??

      • Loki Nahat

        30k is not about min maxing, it’s for us fluff players, if you’re min maxing Mr Author, you’re doing it wrong

        • Graham Roden

          I agree. If you need to add allies to win then you have failed. Each legion has some amazing special rules that can frustrate both the owner and the enemy in equal measure. If you must take allies please go with the fluff, custodes and sisters are always an option for loyalists (Fists being the most likely to field them) daemons are likely to be an option for traitors. Our club has as its number 1 rule for HH ‘Don’t be a Richard’.

          • They are sworn bros with my primary detachment so there.

          • Graham Roden

            I play salamanders and yet I feel no need to add sworn brothers. I would still give you a game and probably have much fun in doing so, but I think Heresy is the perfect opportunity to play a stand alone army with the minimum of extra baggage.

          • I love BA and this is way to get them back into my army again. Everyone who has played against them really love them for all the hard work spent converting and painting.

          • OldHat

            Taking a Questoris Knight House detachment of a Knight or two to show cooperation, or same for a Solar Auxilia force, Legio Cybernetica, etc. Plenty of Allied options make sense and are fluffy. Some Legions ran together, too. I mean, Shattered Legions are basically this. While I agree I think the spirit is missing from the article, he may not have been entirely doing it just to win. I mean, given how gorgeous the Leviathan is, who doesn’t want an excuse to run one?

          • This detachment is there to add some flavor to my main force. I do not need it to win games.

        • Adam Wright

          Tell that to the people who like to bring Quad Mortars.

          • Loki Nahat

            if they’re XIV then we’re cool 😀

          • OldHat

            Quad Launchers with Shatter and Phosphex are very good, but expensive. 180-270pt depending on 2-3 of them, plus the Siegebreaker on top of that. Generally, they have plenty of hard counters too, so hardly cheese – just a very solid unit. If they were no-brainers that fit every single list and had no counters, I would agree they are op.

        • It’s not min max silly

          • OldHat

            But I think people see it that way because you haven’t given us any fluff, story, or context to your list as a whole. People in the 30k community really, really push narratives over the hardcore silliness of 40k. That may be why you are getting so much pushback.

          • It is an addition to my Templar army and they act as a united force themed upon the end of the Siege of Terra since both Legions were there. The last time I posted some of my fluff I got a lot of rude comments… damned if you do and damned if you don’t.

          • OldHat

            Well, you can’t win ’em all. But for 30k, more fluff is always better.

          • For sure.

          • Mira Bella

            Hmm fair enough.
            I think the main problem is that you are a competitive gamer at heart. This is not a bad thing. Unfortunately im not aware of a GW produced game that was made to support that playstyle.
            I think you could have a lot more fun with the games of other producers. Im not talking about a particular gaming System. There are so many good one’s out there.
            That doesn’t mean that you have to stop playing 40k but you could supplement your gaming diet with a game that actually supports who you truly are!
            I think the comment section would look a lot different then too.

          • I don’t let the sour pusses get me down. There will always be people that see the cup half empty. ; )

    • And ?

      • Jonathon West

        I think my post is self explanatory. Leave 40k ally shenanigans to 40k. And as a few people have said I don’t think your snap firing thing is legal.

        • So we should all play like you tell us to play ?

          • Jonathon West

            You play how ever you want to play bud. You asked what I meant, I didn’t reply then you asked me again so I replied.

  • DaveTycho

    This article is supposed to be about using allies in 30k. What it
    should have been about is how to use allied units to create useful synergies, or fluff builds. Instead what we got was how to attach one character to an allied, character-led unit to make it more powerful; and no discussion at all at how this allied army works with the rest of the main force.

    • I said the primary function is to tank hunt.

      • DaveTycho

        And what is the rest of the army doing? If you want to discuss how your allied force is fulfilling a specific role, you should discuss what the main force is doing as well to give context. All that is here is the blood angels, one knight errant, and nothing to how they compliment your main force (beyond saying “to tank hunt”) or perhaps how the main force would compliment it (without the use of attaching allied characters, of course).

        • The rest of the army is a static siege force – loser .

          • DaveTycho

            You could have mentioned that the rest of the army was static siege force in the article. That would have cleared things up a lot. However, you went too far with the loser comment, so you’re being flagged for that.

    • OldHat

      Right? Like, if you want to post lists, do it in a forum. 😀 I literally have no idea what the story is behind the list or why they are working together, etc. Or what the RoW are or anything.

    • Why don’t you write an article then and set the record straight Dave ??

      • DaveTycho

        It’s your responsibility to fix your own mistakes.

  • OldHat

    How are they not scattering? Snap shots? Etc?

    “When an Independent Character joins a unit, it might have different special rules from those of the unit. Unless specified in the rule itself (as in the Stubborn special rule), the unit’s special rules are not conferred upon the Independent Character, and the
    Independent Character’s special rules are not conferred upon the unit. Special rules that are conferred to the unit only apply for as long as the Independent Character is with them.”

  • Chad Underdonk

    Just make sure to praise the Lord Emperor by putting “Sanguinem Quia Sanguinem Deus” on all your Imperial Banners and vehicles.

    • DaveTycho

      I’m curious to know the translation.