Journal Tactica: Isstvan V: Part 1A narrative gaming supplement for Warhammer: The Horus Heresy Explore the explosive events that brought the civil war out into the open Includes additional rules and unit profiles for your Legiones Astartes armies Play through a Legendary Scenario representing the Loyalists' initial strike On Isstvan V, the Retribution Fleet sought to bring Horus to account for the atrocities he had already committed against the Imperium. Unbeknownst to them, the