This book is an essential guide for anyone who wants to command a Loyalist Legiones Astartes force in Warhammer: The Horus Heresy. It contains the rules you need to field the vast array of units available to Loyalist Space Marine Legions from core squads, vehicles, and weapons shared by all Legions to unique Detachments, signature Wargear, and powerful Primarch-led formations.

This 328-page hardback book contains:

• Background and lore: Explore the origins, structure, and battlefield roles of the Legiones Astartes, with detailed examples of Loyalist forces that fought to preserve the Imperium during the Horus Heresy.
• Rules and unit profiles: A complete guide to army creation, including unit datasheets, Wargear options, and weapons available to Loyalist forces.
• Legion-specific special rules: Unique Detachments, unit profiles, Wargear, Gambits, Faction Abilities, and Reactions for each of the nine Loyalist Legions: Dark Angels, White Scars, Space Wolves, Imperial Fists, Blood Angels, Iron Hands, Ultramarines, Salamanders, and Raven Guard.
• Primarch profiles: Full rules for fielding the Emperor’s greatest sons in battle Lion ElJohnson, Jaghatai Khan, Leman Russ, Rogal Dorn, Sanguinius, Ferrus Manus, Roboute Guilliman, Vulkan, and Corvus Corax.
• Visual showcases: Heraldry guides, Legion colour schemes, and a gallery of expertly painted miniatures showcasing each Loyalist Legions unique character.

Whether you are defending the Imperium from the forces of treachery or waging a war to restore the Emperors vision, this book provides everything you need to field a glorious Loyalist army in the Age of Darkness.