Hello everyone! This is a list to play a Mechanicum Taghmata army that I put together with the help of other community members on the Tactical Command Discord server. It is made with existing Legions Imperialis model kits in mind, although particular units like Castellax and Vorax are -- as of now -- assumed to be one model per base. Ideas were taken from the AU30k Mechanicum and Knight Household lists as well as the Skitarii Legion list in the Tournament Pack.

This list has not yet been playtested, which is why it is currently an Experimental list. The goal is to eventually get it to an Approved status. Of course, feedback, advice, and contributions are very much appreciated. I just want to help bring more model collections and fun to the table by posting and developing this army. Thank you for your interest and to all those who helped out in the Discord.

Edit (2026/03/25): v0.0.5 has been released!

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Hello again! Just thought I'd post a new version of 0.0.4 as a small update to see what people think about it. Here are the changes I made:

- Fixed some typos and reworded a few things
- The Cortex Controller now works both from inside and outside vehicles
- Removed the Marauder Bomber because it is unclear whether the Mechanicum utilized them in the lore, and the list already has several template weapons anyway
- Replaced the Heavy Bolters on the Sagitarii and Ulator with Volkite Culverins that face to the left, right, and back
- Buffed the missile weapon on the Aktaeus to 4 shots

You can see the new list for yourself by viewing the PDF attached to this comment. I also threw together the following 3000 point list just for fun:

- Taghmata Formations:
-- 6 Castellax, 2 Tech Priest Auxilia (250)
--- Taghmata Upgrades:
---- Magos, Archmagos Prime on Abeyant (100)
---- Thanatar-Calix x2 (150)
---- Domitar x2 (150)
-- 4 Thallax (200)
--- Taghmata Upgrades:
---- Transport x2 (150)
- Ordinatus Formations:
-- Ordinatus Sagittar (175)
- Taghmata Support Formations:
-- 4 Myrmidon Destructor (250)
--- Taghmata Upgrades:
---- Vultarax x2 (100)
-- 4 Myrmidon Secutor (250)
--- Taghmata Upgrades:
---- Transport x2 (150)
---- Arlatax x2 (150)
---- Magos, Magos Dominus (50)
-- 2 Avenger Strike Fighters (200)
-- 4 Krios Battle Tanks (250)
- Mechanicum Allies
-- 3 Knight-Moirax (150)
-- 2 Cerastus Knight-Atropos (275)

Let me know how your list building goes! Thank you again for your interest.

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Hello! Here's a quick update before the weekend to make some fixes and more significant changes than the previous version of 0.0.4. Let me know what you guys think and how this plays if anyone does any playtesting.

v0.0.4b
- Fixed some typos
- Added Tunneler to the Ordinatus Aktaeus as it should have been there before
- Reduced the cost of the Triaros Armoured Conveyor to 50 points
- Nerfed the Acastus Knight-Asterius; its Volkite Culverins are now FwA
- Reduced the base costs of the Adsecularis Tech-Thrall Covenant and Thallax Cohort to 175 points
- Increased the range of the Plasma Mortar on the Thanatar-Cavas to 45cm
- Removed D from several unit weapon profiles: Shock Ram (replaced with EA+1), all Volkite weapons, Karacnos Mortar Battery
- Gave the Karacnos Mortar Battery BP2 and reduced the Karacnos Assault Tank Squadron to 2 units and 225 points
- Changed the Krios Squadron to 3 units and 175 points

The last two point reductions were made to make the Karacnos and Krios easier to fit into lists and make it possible to create more formations from one plastic kit. I was also advised to remove D from several weapons. Attached to this post is the list to check out the changes for yourself. Like last time, I also wrote up a list -- but for a 1000-point game of Minigeddon!

- Taghmata Formations
-- 4 Thallax (175)
--- Taghmata Upgrades
---- 2 Vultarax (100)
- Ordinatus Minoris Formations
-- 1 Ordinatus Ulator (150)
- Taghmata Support Formations
-- 4 Myrmidon Secutor (250)
--- Taghmata Upgrades
---- 0-1 Archmagos Prime (75)
---- 2 Transport (100)
---- 2 Arlatax (150)

I hope you get a lot of fun out of this arrmy. Have a great weekend, and thank you again for your interest!

Edit 1: Here's another 1000-point Minigeddon list I just whipped up.

- Taghmata Formations
-- 4 Thallax (175)
- Taghmata Support Formations
-- 4 Myrmidon Destructor (250)
--- Taghmata Upgrades
---- 0-1 Archmagos Prime (75)
---- 3 Thanatar-Cavas (225)
- Mechanicum Allies
-- 2 Cerastus Knight-Atropos (275)

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Heyo

I've talked a bit with you on the discord at an earlier stage of this. I'm grabbing a Mech LI box in a bit, so I'm getting interested in the list again. Some thoughts:

- Generally it looks ready for playtesting, thanks for filling out all the unit profiles. Great work, good document.

- The Magos Dominus upgrade doesn't get you a ton. 50 points for Commander, Invuln, and Cortex doesn't seem worth it. I think giving them a bonus weapon (either small arms EA or a MW EA assault weapon) and Leader would give more reason.

- Consider making an Archmagos Prime buff a unit's Inititative to 1+

- Cutting back on Weapon Traits

I think I mentioned this on Discord, but I don't think any other list has small arms or assault weapons with Disrupt, so most of those should go. Generally speaking you should probably tone back the number of weapon traits out there and take away a lot of Disrupts from weapons like the Volkite Veuglaire, Graviton Gun, Graviton Hammers, Shock Ram, Irradiation Blaster's Small Arms profile, Karacnos Mortar Battery, Volkite Culverin. Some or all of those.

- Dire Wolf Infiltrator?

Infiltrator doubles a unit's charge speed, so this could charge 60cm, ignoring the target's ZoCs. That is definitely not what it should be doing.


- Independent Thanatar/Domitar/Arlatax/Vulturax Maniples

These are listed as an upgrade, but the double star (**) says "These Taghmata Upgrades are separate Formations".

I'm a bit confused at this, most lists don't do it this way. One concern is that I could add a ton of cheapo 50 point activations with Vulturax, another is that 3 maximum models is a very small unit cap size for all of these. 3 is a bit of a cursed unit size because if you get shot at (1 blast marker) and lose a casualty (1 blast marker) the unit automatically breaks, making them very fragile.

I think you should keep these upgrades as-is (perhaps cheaper, say for Domitars) and then create independent units sized at 4ish.


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I do not want this to be taken as a negative ranting, I like the list a lot at present and will make some sample lists. Will update soon!

Hello everyone! I apologize that it has been a long while since the last list update due to obligations IRL. This list has been moved up to v0.0.5, as though most of the changes are straightforward, the list should feel different enough in play to warrant a new number. Some of the changes were suggested by Queen of Bithynia or influenced by this input. Let me know how the rules look and how they play on the table. I hope people have a lot of fun with this army. Thank you for your interest!

v0.0.5:
- Minor table rearrangements and rewording of rules were made.
- The Ordinatus Aktaeus formation is made 0-1 to represent its rarity in the lore. In addition, it can now transport the Castellax, Vorax, Arlatax, Domitar, and both forms of Thanatar.
- All mentions of "1-3" in references to unit count of formations under Taghmata Upgrades were made into "2-4".
- The Vultarax Stratos-Automata, the Arlatax Battle-Automata, and the Domitar Battle-Automata were reduced to 50 points per unit.
- The Archmagos Prime on Abeyant unit type is changed to Character. Its Speed value was changed to "n/a". In addition, units with this upgrade have an Armour value of at least 3+ and have their unit type changed to Armoured Vehicle.
- As per suggestion, the Magos Dominus was given Power Weapons and the Leader special rule.
- The Dire Wolf Class Titan lost its Infiltrator special rule.
- The Volkite Veuglaire is now AP3+. The AP value of the Volkite Culverin is strengthened to AP4+.
- As per suggestion, both the Archmagos Prime and the Archmagos Prime on Abeyant now grant Initiative 1+ to formations it is attached to. In addition, both have CC and FF values of at least 3+ and 4+ respectively.
- Blank entries under Upgrades in the tables were clarified to be "None".
- Thallax Cohorts are now clarified to have access to all Taghmata Upgrades.
- "Power Blade Arrays" on Vorax Battle-Automata were changed to "Vorax Power Blade Arrays". In addition, their FF value was improved to 4+.
- "Reinforced Armour" was removed from the Archmagos Prime to create a better incentive for the Archmagos Prime on Abeyant.
- A new special rule, Battlesmith, was given to the Tech Priest Auxilia, the Magos Dominus, the Archmagos Prime, and the Archmagos Prime on Abeyant. The cost of the Tech Priest Auxilia unit was thus increased to +50 points each. The costs of both the Castellax Battle-Automata Maniple formation and the Myrmidon Sect formation thus increased to 275 points. The cost of the Adsecularis Tech-Thrall Covenant formation was kept as-is to give it an additional niche as a cheaper way to get Tech Priest Auxilia units.
- The Knight Moirax CC value with the Siege Claw was improved to 4+.
- NOTE: The Disrupt special rule has already been removed from all Vokite weapons, the Shock Ram, and the Karacnos Mortar Battery. Only the Graviton Gun, Graviton Hammers, Irradiation Blaster, Arc Blaster, Ulator Sonic Destroyer, and Barrage Missile should have Disrupt now. Let me know if this is not the case.

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