This Horus Heresy reveal is compact, though it has real substance. Moreover, it hits both Legiones Astartes and Solar Auxilia players.
That matters, because plastic support always helps niche units feel more attainable. So, even though the article is brief, the lineup feels genuinely useful.
What the Preview Actually Brings

The headline reveal is the Spartan Prometheus Assault Tank, which takes the familiar Spartan chassis and gives it a different battlefield role. Instead of the standard lascannon arrays, it swaps to either gravis heavy bolter arrays for infantry clearing or laser destroyers for heavier armor busting.

Moreover, the article frames it as a transport for whole squads of power-armoured or Terminator-armoured marines, so this thing still keeps that classic Spartan identity of shoving a serious payload into the center of the table. Likewise, both Loyalists and Traitors can field it, and it comes with pintle weapon and accessory options for extra customization. That alone makes it feel like a genuinely flexible kit rather than a one-note sidegrade. Meanwhile, Solar Auxilia get two very different toys.

First are the Charonite Ogryns, and these are exactly the sort of nightmare bruisers the setting does well. They are biochemically altered, sealed into armoured void suits, pumped with stimulants, and armed with cybernetic industrial killing tools instead of normal weapons.



So, they read less like simple abhumans and more like a panic button for when baseline humans need something terrifying to throw at Space Marines.

Then come the Rapier platforms, split into Fire Support and Direct Fire batteries. The Fire Support battery sits behind the lines and carries quad launchers or mole mortars. The quad launcher fires frag shells for broad anti-infantry work or shatter shells for cracking armour, while the mole mortar literally fires into the ground so the payload tunnels under the enemy before erupting. Honestly, that is the exact sort of bizarre old-school weapon concept that makes Horus Heresy feel special.

The Direct Fire battery, by contrast, carries gravis heavy bolters, gravis multi-lasers, or a laser destroyer, so it fills the more straightforward role of mowing down light targets or punching tanks.

Finally, the article confirms updated rules for the new Rapiers, Charonite Ogryns, and the Spartan Prometheus Command Tank in Journal Tactica: The Battle of Tallarn – Part 1. It even sneaks in a cheap shot at Erebus, which feels completely appropriate.
Final Thoughts
Overall, this is a smart reveal rather than a flashy one. The Spartan gives marine armies another serious delivery system. Meanwhile, the Ogryns and Rapiers add exactly the kind of brutal support Solar Auxilia should have. Because of that, the whole preview feels practical, thematic, and very Horus Heresy.

