ISSTVAN III - ACT II SCENE 6 - Astartes Officers in Conspiracy

Oct 7, 2026

A drama-like playtest scene set at Isstvan III Act II Scene 6 presents five Astartes officers under coloured robes delivering escalating accusations and defining their choices between betraying Horus or the Emperor. The dialogue expands into counts of men from multiple Traitor and Loyalist formations, debates trustworthiness, and criticizes past campaign actions. The scene ends with plans to seize the Eisenstein, coordinate ships, and sabotage the broader fleet while invoking vindication through history.

LanguageEnglish

CategoryStory & Novel

FormatPDF

Pages57

Reading Time1 h 28 min

AccessFree to download

Dedication

Sources

ISSTVAN III - Act II Scene 6

THIS IS NOT AN OFFICIAL GAMES WORKSHOP PRODUCT YOU NEED A COPY OF THE KILL TEAM MANUALS AND THE KILL TEAM AGE OF DARKNESS TO USE THIS SUPPLEMENT Dedication This book is dedicated to the Admins, mods and members ofthe Kill Team Castellano and Horus Heresy Painting and Modelling FB groups, including Pablo, Ivan, Jon, and Bryan. You got me back into the game after I pretty much abandoned it at versions 0.2. Your enthusiasm is unflinching and your encouragement relentless. A special mention too should be made of the amazing 30K community on Instagram, especially Lahmian_Maximus and TheRealAlmarius, hard for heresy indeed. Thankyou, DB. Sources This is not an original work. Almost all of the words and imagery used were taken from the following sources: • Forge World ([www.forgeworld.co.uk](www.forgeworld.co.uk)): Horus Heresy Black Books 1-8 and the Visions of Heresy were the primary sources for background text, images, and troop information. • Black Library ([www.blacklibrary.com](www.blacklibrary.com)): Horus Heresy Novels provided the context for the background and use of novel cover images, Viva Neil! • Games Workshop ([www.games-workshop.com](www.games-workshop.com)): Kill Team for the layout, typographic elements o References: I make frequent references to existing rules found in the Kill Team rule books. These are noted as the page number preceded by the book they are in. These are; KT-CM KT-ELT KT-CMD KT-A19 KT-ARN KT-AOD Kill Team Core manual Kill Team Elite Kill Team Commander Kill Team Annual 2019 Kill Team Arena Kill Team Age Of Darkness • Lexicanum Wiki ([wh40k.lexicanum.com](wh40k.lexicanum.com)): An excellent resource for the minutia of the setting • Warhammer 40K Wiki ([warhammer40k.wikia.com](warhammer40k.wikia.com)): An outstanding Horus Hersey background resource, this PDF has pieces copied wholesale from it. IF YOU ENJOY THIS EXPANSION PLEASE BUY THE BOOKS/ MODELS THAT INSPIRED IT OR SUPPORT THE WEBSITES AND COMMUNITIES THAT KEEP IT GOING. Copyright and Legal Information GW, Games Workshop, Citadel, Black Library, Forge World, Warhammer, the Twin-tailed Comet logo, Warhammer 40,000, the ‘Aquila’Double-headed Eagle logo, Space Marine, 40K, 40,000, Warhammer Age of Sigmar, Battletome, Stormcast Eternals, White Dwarf, Blood Bowl, Necromunda, Space Hulk, Battlefleet Gothic, Dreadfleet, Mordheim, Inquisitor, Warmaster, Epic, Gorkamorka, and all associated logos, illustrations, images, names, creatures, races, vehicles, locations, weapons, characters, and the distinctive likenesses thereof, are either ® or TM, and/or © Games Workshop Limited, variably registered around the world. All Rights Reserved. ISSTVAN III ACT II SCENE 6 A single spotlight illuminates five astartes officers standing at the centre of an empty stage. They are cladin gold armour each with a coloured robe: VRIELOK white, SEPHERES bone, TARVITZ purple, VARREN blue, GARRO green. VRIELOK: (resigned) You realise that you are preaching mutiny? SEPHERES: Betray Horus or betray the Emperor. What choice is there? The Astartes look at each other in silence for a few seconds. TARVITZ takes a step forward. TARVITZ: Fact! (holds up his thumb) In the five Chapters under his command, Horus has installed this system of feral-world warrior lodges that he picked upon Davin. The standard Imperial organisations and command structures laid down in the Codex have been completely disregarded. Fact! (index finger) The bulk of the Marines in our five Chapters have repudiated their Marine's oath and sworn loyalty to the feral world deities. Further, they have sworn loyalty to Horus personally. Heresy and blasphemy. Fact! (middle finger) The Istvann campaign has been conducted without even the pretence of orders from Terra. While I do not presume to speak for the Emperor, I cannot believe that the use of virus bombson lsstvan Ill was justifiable. A single company from a single Chapter dropped o

FAQs

What is the core conflict discussed by the Astartes officers?

They frame the situation as a choice to betray Horus or betray the Emperor, treating their actions as mutiny or heresy depending on allegiance.

Which groups and numbers of warriors does the scene reference?

The dialogue lists counts drawn from multiple formations and brothers, including mentions of World Eaters, Death Guard, Luna Wolves, Murder, Thousand Sons, and other allied factions, then totals seventy Marines as the working force.

What plan do they propose regarding the Eisenstein and the rest of the fleet?

They intend for trusted men to seize the frigate Eisenstein and secure systems across five ships, then clear nearby ships, cover the Eisenstein until the Warp jump, and cause as much damage as possible to the remaining fleet.

Oct 7, 2026

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