The Horus Heresy: Book Two - Massacre (Forge World Series) - Contents: The following is every section contained within The Horus Heresy Book Two - Massacre:Preface - The preface of this book, and all other Forge World Horus Heresy books begin with a foreword by the in-universe "author" of the book, an unknown individual who signs with the initials AK.Imperialis Dominatus - A Great Crusade-era map that covers two full pages, and includes the names of many notable worlds and locations. This is the same map included in The Horus Heresy: Book One – Betrayal.The Road to War - A short retelling of the history of the Imperium of Man up to the end of the Great Crusade. This includes the Age of Strife, the beginning of the Great Crusade, Horus' becoming Warmaster and his eventual fall to Chaos, and the Istvaan III Atrocity. Also included is information regarding the heavy support wargear of the Legiones Astartes, a short list of notable campaigns and events that occured near the end of the Great Crusade and the Space Marine Legions that took part in them.The Dropsite Massacre - This section contains a summary of the Drop Site Massacre, from the initial scans of the Isstvan System by Loyalist forces and their initial planetfall, to the landing of the second wave of supposedly Loyalist forces, and then on to the Drop Site Massacre itself. Also included are detailed maps of the Isstvan System and the Urgall Depression where the battle unfolded, an interrogation report transcript from a captured Word Bearers Astartes, and a highly detailed look at the Thallax warriors of the Mechanicum. This section begins at Planetfall: Minus 339 Hours Terran Sidereal and ends at Planetfall: Plus 3.9 Hours, with over two hundred thousand Astates and one Primarch dead.Part 1: InvasionPart 2: The First WavePart 3: MassacreThe Space Marine Legions - This section contains updated information on the Sons of Horus, World Eaters, Emperor's Children, and Death Guard Legions. This section also includes an in-depth look at the history, disposition, and notable battles of the Iron Hands, Night Lords, Salamanders, and Word Bearers Legions, along with Legio Atarus Titan Legion.The Death GuardThe Emperor's ChildrenThe Sons of HorusThe World EatersThe Iron HandsThe Night LordsThe SalamandersThe Word BearersLegio AtarusBattles in the Age of Darkness - This section contains expanded rules for Warhammer 40,000 intended for games between regular and Apocalypse scale battles during the Great Crusade and Horus Heresy.The Lords of WarBattles in the Age of Darkness Force Organisation ChartsBattles in the Age of Darkness Additional Special RulesForce Organisation Chart ReferrenceThe Dropsite Massacre Campaign - This section describes how to reenact the Dropsite Massacre on the tabletop or exploring possible alternate outcomes of pivotal moments.How the Dropsite Massacre Campaign WorksOptional Campaign RulesPhase I - The Loyalists StrikePhase II - The Imperium BleedsPhase III - Blood and TreacheryMission I - Brother against BrotherMission II - Hammerblow AssaultMission III - Deadly GroundMission IV - Tide of WarLegendary Mission: Vanguard FuryLegendary Mission: CataclysmLegendary Mission: The Blood of the PrimarchSpace Marine Legion Crusade Army List Additions and Updates - This section includes rules that expands upon the Space Marine Legion Crusade Army List found in The Horus Heresy: Book One - Betrayal.Additional Special Rules for Heresy-era GamingElitesFast AttackHeavy SupportDedicated TransportsLords of WarSpace Marine Legion Army List Appendix - This section contains the rules, options, and special characters for the eight of the eleven Space Marine Legions that were on Isstvan V.The Sons of HorusThe World EatersThe Emperor's ChildrenThe Death GuardThe Iron HandsThe Night LordsThe SalamandersThe Word BearersThe Legio Cybernetica - This section contains the rules and units needed for building Mechanicum force, either as a standalone army or as an allied detachment to a Legiones Astartes force.Mechanicum Warlord TraitsLegio Cybernetica Wargear and Special RulesCybertheurgyHQElitesTroopsFast AttackHeavy SupportAppendix: Battles in the Age of Darkness - This section contains rules for using super-heavy units and apocalyptic weapons in Age of Darkness battles.Super-Heavy Vehicles and Gargantuan CreaturesSuper-Heavy WalkersApocalyptic Weapons RulesAfterword - An afterword about the Horus Heresy and Warhammer 40,000 by the book's real-world author, Alan Bligh.