JOURNAL TACTICA: ISSTVAN V: PART 1

The Battle for Isstvan V – A Warhammer: The Horus Heresy Supplement
Brother Betrays Brother on the Black Sands of Isstvan

On the scorched world of Isstvan V, the Imperium launched a Retribution Fleet to bring the traitorous Warmaster Horus to justice. But beneath the surface of loyalty lay a far deeper rot. As the Loyalist Legions set foot upon the black sands of the Urgall Depression, they were met not with honour—but with betrayal. This would become the infamous Dropsite Massacre, a moment of treachery so severe that entire Legions were broken, and the Horus Heresy was truly unleashed.

The Battle for Isstvan V is a narrative supplement for Warhammer: The Horus Heresy, plunging you into one of the most devastating turning points in galactic history. This 48-page softcover book offers new missions, units, and lore to help you recreate the brutal opening strikes of the Heresy in thrilling tabletop games.

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Inside this Supplement (48-page Softcover):

• In-Depth Lore:
  Explore the chilling events of the Dropsite Massacre—from the arrival of the Retribution Fleet to the shocking moment of betrayal. Rich background detail sets the stage for your narrative battles.

• New Unit Rules:
  Add powerful new options to your army with rules for the:

  • Master of Descent

  • Augur Command and Control Squad

  • Hyperios Missile Tank

• Expanded Gameplay Mechanics:
  Introduce new tactical layers with the Interdiction Cadre Prime Advantage and Battlefield Assets rules.

• Legendary Narrative Scenario:
  The First Wave mission lets you reenact the tragic opening assault of the Loyalist Legions, bringing the horrors of Isstvan V to life on your tabletop.

Please note, due to Games Workshop policy we are not allowed to sell this product internationally outside of Canada. If added to cart, it may prevent checkout for international customers. International orders containing new Games Workshop products will be cancelled.