TEXT: 1
  IMPERIAL ARMOUR – INDEX: FORCES OF CHAOS
  INDEX: FORCES OF CHAOS
  These documents collect amendments to the rules and present 
  our responses to players’ frequently asked questions. Often 
  these amendments are updates necessitated by new releases or 
  community feedback; these can be identified by the presence 
  of an asterisk before the page reference. At other times, these 
  amendments are errata designed to correct mistakes or add 
  clarity to a rule that is not as clear as it might be. 
  As they’re revised regularly, each of these documents has a 
  version number; where a version number has a letter, e.g. 1.1a, 
  this means it has had a local amendment, only in that language, 
  to clarify a translation issue or other minor correction. When 
  a document is revised, the version number will be incremented 
  and new updates will be highlighted in blue, while new errata 
  and FAQs will be highlighted in magenta.
  UPDATES & ERRATA
  All Heretic Astartes datasheets in this publication, as well as 
  the Terrax-pattern Termite Assault Drill datasheet (available 
  for download from the Forge World website) if it is taken from 
  the Chaos Space Marines faction
  Add the following ability: 
  ‘Hateful Assault: If this unit makes a charge move, is charged 
  or performs a Heroic Intervention, add 1 to the Attacks 
  characteristic of models in this unit until the end of the turn.’
  Page 8 – Chaos Decimator, Keywords
  Delete ‘Titanic’ from this datasheet’s Keywords line.
  Page 9 – Plague Hulk of Nurgle, Faction Keywords 
  and Keywords
  Add ‘Heretic Astartes, <Legion>’ to this datasheet’s Faction 
  keyword line and ‘Daemon Engine’ to this datasheet’s 
  Keywords line.
  Page 9 – Plague Hulk of Nurgle, Abilities, Rusting Curse
  Change to read:
  ‘Subtract 1 from saving throws (excluding invulnerable saving 
  throws) made for Vehicle models whilst their unit is within 1" of 
  any enemy Plague Hulk of Nurgle models.’ 
  *Page 9 – Kytan Ravager, Abilities, Titanic Daemon Engine
  Change to read:
  ‘This model is eligible to declare a charge in a turn in which 
  it Fell Back. Each time this model makes a Normal Move, 
  Advances or Falls Back, it can be moved across other models 
  (excluding Monster and Vehicle models) as if they were not 
  there, and when it does it can be moved within Engagement 
  Range of such models, but cannot finish its move within 
  Engagement Range of any of them.’
  *Page 10 – Greater Brass Scorpion of Khorne, Abilities, 
  Titanic Daemon Engine
  Change to read:
  ‘This model is eligible to declare a charge in a turn in which 
  it Fell Back. Each time this model is selected to shoot while 
  it is within Engagement Range of any enemy units, it can 
  make attacks against eligible enemy units that are not within 
  Engagement Range of it as if there were no enemy models within 
  Engagement Range of it.’
  Page 10 – Greater Brass Scorpion of Khorne, Abilities, Runes of 
  the Blood God
  Delete the words ‘(friendly or enemy)’ from this ability.
  Add the following: 
  ‘Furthermore, this model cannot be targeted by psychic powers 
  manifested by friendly Psykers.’ 
  Page 12 – Hellforged Contemptor Dreadnought, Abilities, 
  Containment Breach
  Change the third sentence to read:
  ‘Each unit within 6" suffer D3 mortal wounds unless it is a 
  Psyker, in which case it suffers D6 mortal wounds instead.’
  Pages 12, 20 and 22 – Hellforged Contemptor Dreadnought, 
  Hellforged Deredeo Dreadnought and Hellforged 
  Leviathan Dreadnought
  Add ‘Helbrute’ to the Keywords line of all these datasheets.
  Page 12 – Hellforged Contemptor Dreadnought, 
  Wargear Options
  ‘• A Hellforged Contemptor may replace one deathclaw and one 
  combi-bolter with one of the following weapons (both death 
  claw and combi-bolter must be replaced). Alternatively, it can 
  replace both deathclaws and both combi-bolters for two of the 
  following weapons:
  • Twin heavy bolter
  • Multi-melta
  • Twin autocannon
  • Ectoplasma cannon
  • Kheres assault cannon
  • C-beam cannon
  • Butcher cannon
  • Twin lascannon’
  Add the following wargear option:
  ‘• This model may take a havoc launcher.’
  
  2
  IMPERIAL ARMOUR – INDEX: FORCES OF CHAOS
  Pages 12-29 – Abilities, Machina Malefica
  Change to read:
  ‘At the end of each Fight phase, roll a number of D6 for this 
  model equal to the number of models that were slain by it 
  during this phase; for each dice that scores a 5+, this model 
  regains one lost wound. This model cannot regain lost wounds 
  by any other means.’
  Pages 13 and 14 – Hellforged Land Raider Proteus and 
  Hellforged Land Raider Achilles, Abilities, Containment Breach
  Change the third sentence of this ability to read:
  ‘Each unit within 6" suffers D6 mortal wounds unless it is a 
  Psyker, in which case it suffers 2D3 mortal wounds.’
  *Page 19 and 25-29 – Hellforged Spartan Assault Tank, 
  Hellforged Cerberus Heavy Destroyer, Hellforged Typhon 
  Heavy Siege Tank, Hellforged Fellblade, Hellforged Falchion and 
  Hellforged Mastodon, Abilities, Steel Behemoth 
  Change to read: 
  ‘This model is eligible to declare a charge in a turn in which 
  it Fell Back. Each time this model is selected to shoot while 
  it is within Engagement Range of any enemy units, it can 
  make attacks against eligible enemy units that are not within 
  Engagement Range of it as if there were no enemy models within 
  Engagement Range of it.’
  Page 20 – Hellforged Deredeo Dreadnought, Wargear Options
  Change the second wargear option to read:
  ‘•  A Hellforged Deredeo Dreadnought may be equipped with 
  one of the following:
   
  - Greater havoc launcher
   
  - Hellfire veil’
  Page 20 – Hellforged Deredeo Dreadnought, Abilities, 
  Hellfire Veil
  Change the first sentence of this ability to read:
  ‘If equipped with a Hellfire veil, all friendly units with the 
  Chaos and <Legion> keywords that are wholly within 6" of the 
  Hellforged Deredeo Dreadnought gain a 5+ invulnerable save.’
  Page 21 – Hellforged Rapier Battery, Abilities, Chaos Space 
  Marine Crew
  Change this ability to read:
  ‘When a Hellforged Rapier Battery is set up on the battlefield, all 
  models are set up in unit coherency. From that point onwards, 
  all the Hellforged Rapiers are treated as one unit and all the 
  Chaos Space Marine Crew are treated as another. Chaos Space 
  Marine Crew may only be chosen as a target in the Shooting 
  phase if they are the closest visible unit to the firer.’
  Page 21 – Hellforged Rapier Battery, Keywords
  Change the keyword lines to read:
  ‘(Hellforged Rapier): Vehicle, Artillery, Hellforged, 
  Hellforged Rapier Battery
  (Chaos Space Marines): Infantry, Hellforged Rapier Crew’
  Page 22 – Hellforged Leviathan Dreadnought, Wargear Options
  Change the second wargear option to read:
  ‘•  A Hellforged Leviathan may replace one siege claw and one 
  meltagun for one of the following weapons (or it can replace 
  both siege claws and both meltaguns for two of the following):’
  Pages 22 and 81 – Hellforged Leviathan Dreadnought and 
  Hellforged Melee Weapons list, hellforged siege claw, Abilities
  Add the following:
  ‘Re-roll failed wound rolls against Infantry.’
  Page 23 – Hellforged Dreadclaw Drop Pod, Transport
  Change to read:
  ‘This model can transport 10 <Legion> Infantry models. Each 
  Jump Pack or Terminator model takes up the space of two other 
  models. This model can instead transport a single Hellforged 
  Contemptor Dreadnought, Chaos Decimator or Helbrute, and 
  no other models. It cannot transport a Hellforged Leviathan 
  Dreadnought or a Hellforged Deredeo Dreadnought.’
  Page 24 – Hellforged Kharybdis Assault Claw, Transport
  Change the first sentence to read:
  ‘This model can transport 20 <Legion> Infantry models.’
  Page 27 and 80 – Hellforged Fellblade and Hellforged Ranged 
  Weapons list, fellblade accelerator cannon, HE shells
  Change the Damage characteristic of this profile to 2. 
  *Page 27 and 80 – Hellforged Fellblade and Hellforged Ranged 
  Weapons list, demolisher cannon
  Change Type characteristic to Heavy D6 and Abilities to ‘Blast’.
  Page 27 – Hellforged Fellblade, Wargear Options
  Change the first wargear option to read:
  ‘•  A Hellforged Fellblade may replace its two quad lascannon 
  with two laser destroyers.’
  Page 28 – Hellforged Falchion, Wargear Options
  Change the first wargear option to read:
  ‘•  A Hellforged Falchion may replace its two quad lascannon 
  with two laser destroyers.’
  *Pages 32-36 – Chaos Hell Talon, Chaos Storm Eagle 
  Assault Gunship, Chaos Fire Raptor Assault Gunship, Chaos 
  Thunderhawk Assault Gunship and Chaos Sokar Pattern 
  Stormbird Gunship, Abilities, Daemonic Machine Spirit 
  Delete this ability.
  *Page 37 – Chaos Xiphon Interceptor, Abilities, 
  Terminal Targeting 
  Delete this ability.
  Pages 33 and 34 – Chaos Storm Eagle Assault Gunship and 
  Chaos Fire Raptor Assault Gunship, Damage Tables
  Change the third value under ‘BS’ to read ‘5+’
  Page 39 – Zhufor the Impaler, Faction Keywords
  Change this datasheet’s Faction Keywords line to read:
  ‘Chaos, Heretic Astartes, Khorne, World Eaters, Skulltakers’
  Page 41 – Lord Arkos, Faction Keywords
  Change this datasheet’s Faction Keywords line to read:
  ‘Chaos, Heretic Astartes, Alpha Legion, The Faithless’
  
  3
  IMPERIAL ARMOUR – INDEX: FORCES OF CHAOS
  Page 49 – Aetaos’rau’keres, Abilities, Dark Jealousy
  Change to read:
  ‘If, at the beginning of the controlling player’s Shooting phase, 
  another Lord of Change or Daemon Prince is within 12" of 
  Aetaos’rau’keres, roll one D6. On a 4+ the Staff of Cataclysm’s 
  ranged attack must be used against the closest Lord of Change 
  or Daemon Prince, other than Aetaos’rau’keres (friend or foe, 
  contrary to the usual rules for targeting Characters).’
  Page 49 – Aetaos’rau’keres, Staff of Cataclysm, Abilities
  Change the second sentence to read:
  ‘If a unit of at least 10 Infantry models has its last models slain 
  by this attack, a unit of 3 Flamers of Tzeentch is added to your 
  army and immediately placed within 6" of the slain unit and 
  more than 1" from any enemy models before it is removed.’
  Page 50 – Mamon Transfigured, Faction Keywords
  Change this datasheet’s Faction Keywords line to read:
  ‘Chaos, Heretic Astartes, Daemon, Death Guard, The Tainted’
  Pages 45-56 – Faction Keywords
  Add ‘Daemon’ to all these units’ Faction Keywords line (and 
  delete it from their Keyword line).
  Page 53 – Pox Riders of Nurgle, Keywords
  Add ‘Plaguebearer’ to this datasheet’s Keywords line.
  Page 54 – Spined Chaos Beast, Abilities, Daemonic Allegiance
  Change to read: 
  ‘When this model is chosen as part of an army, the controlling 
  player must select one of the following keywords, replacing its 
  <Allegiance> keyword: Khorne, Tzeentch, Nurgle or Slaanesh. 
  This model will gain one additional ability based on the chosen 
  keyword; if Khorne is chosen, it gains Unstoppable Ferocity; if 
  Tzeentch is chosen, it gains Ephemeral Form; if Nurgle is chosen, 
  it gains Disgustingly Resilient; and if Slaanesh is chosen, it 
  gains Quicksilver Swiftness.’
  *Pages 54 and 85, Spined Chaos Beast and Children of the 
  Warp Melee Weapons list, warp spines, Abilities
  Change to read:
  ‘Normal attacks cannot be made with this weapon. Instead, roll 
  a D6 each time a Spined Chaos Beast ends a charge move within 
  Engagement Range of an enemy unit, or an enemy unit ends a 
  pile-in move within Engagement Range of the Spined Chaos 
  Beast. On a 2+, that enemy unit suffers a single automatic hit.’
  Page 55 – Giant Chaos Spawn
  Add <Allegiance> to this unit’s Faction Keywords line.
  Add the following ability:
  ‘Daemonic Allegiance: When this model is chosen as part 
  of an army, the controlling player must select one of the 
  following keywords, replacing its <Allegiance> keyword: 
  Khorne, Tzeentch, Nurgle or Slaanesh. This model will 
  gain one additional ability based on the chosen keyword; if 
  Khorne is chosen, it gains Unstoppable Ferocity; if Tzeentch is 
  chosen, it gains Ephemeral Form; if Nurgle is chosen, it gains 
  Disgustingly Resilient; and if Slaanesh is chosen, it gains 
  Quicksilver Swiftness.’
  Add the following abilities from the Spined Chaos Beast 
  datasheet to this datasheet: 
  Unstoppable Ferocity, Ephemeral Form, Disgustingly Resilient 
  and Quicksilver Swiftness.
  Pages 42 and 43 – Chaos Hellwright and Chaos Hellwright on 
  Dark Abeyant, Abilities, Master of Mechanisms
  Change ‘Questor Traitorous’ to read ‘Questor Traitoris’.
  Pages 58-64 – Renegade Knight Acheron, Renegade Knight 
  Lancer, Renegade Knight Castigator, Renegade Knight Atropos, 
  Renegade Knight Magaera, Renegade Knight Porphyrion and 
  Renegade Knight Styrix, Keywords
  Change ‘Questor Traitorous’ to read ‘Questor Traitoris’.
  *Pages 58-64 – Renegade Knight Acheron, Renegade Knight 
  Lancer, Renegade Knight Castigator, Renegade Knight Atropos, 
  Renegade Knight Magaera, Renegade Knight Porphyrion and 
  Renegade Knight Styrix, Abilities, Infernal Knight Titan
  Replace this ability with the following:
  ‘Super-heavy Walker: This model is eligible to declare a charge 
  in a turn in which it Fell Back. Each time this model makes a 
  Normal Move, Advances or Falls Back, it can be moved across 
  other models (excluding Monster and Vehicle models) as if 
  they were not there, and when it does it can be moved within 
  Engagement Range of such models, but cannot finish its move 
  within Engagement Range of any of them.’
  *Pages 67, 69 and 70 – Chaos Warlord Battle Titan, Chaos 
  Reaver Battle Titan and Chaos Warhound Scout Titan, Abilities, 
  Infernal God-engine
  Change to read:
  ‘This model is eligible to declare a charge in a turn in which 
  it Fell Back. Each time this model makes a Normal Move, 
  Advances or Falls Back, it can be moved across other models 
  (excluding Monster and Vehicle models) as if they were not 
  there, and when it does so it can be moved within Engagement 
  Range of such models, but cannot finish its move within 
  Engagement Range of any of them.’
  Pages 62, 64 and 86 – Renegade Knight Magaera, Renegade 
  Knight Styrix and Traitor Questoris Melee Weapons, 
  reaper chainsword
  Change the Strength characteristic of this weapon to ‘+6’.
  Page 63 – Renegade Knight Porphyrion, Abilities
  Delete the ‘Explodes’ ability from this datasheet.
  
  4
  IMPERIAL ARMOUR – INDEX: FORCES OF CHAOS
  FAQs
  Q: Are there any restrictions on which Legion I can choose when 
  replacing the <Legion> Faction Keyword on datasheets within 
  this book?
  A: Yes, as follows: 
  You can only choose for a unit to be from the World Eaters 
  Legion if it has the Khorne keyword, or if it has the <Mark of 
  Chaos> keyword and you choose to replace that with Khorne.
  You can only choose for a unit to be from the Thousand Sons 
  Legion if it has the Tzeentch keyword, or if it has the <Mark of 
  Chaos> keyword and you choose to replace that with Tzeentch. 
  You cannot choose for a Hellforged Rapier Battery, a Chaos 
  Hellwright or a Chaos Hellwright on Dark Abeyant to be from 
  the Thousand Sons.
  You can only choose for a unit to be from the Death Guard Legion 
  if it has the Nurgle keyword, or if it has the <Mark of Chaos> 
  keyword and you choose to replace that with Nurgle. You cannot 
  choose for a Hellforged Rapier Battery, a Chaos Hellwright or a 
  Chaos Hellwright on Dark Abeyant to be from the Death Guard.
  You can only choose for a unit to be from the Emperor’s 
  Children Legion if it has the Slaanesh keyword, or if it has 
  the <Mark of Chaos> keyword and you choose to replace that 
  with Slaanesh.
  Otherwise, any of the units in this book can be from any Legion.
  Q: There is no datasheet for a Ferrum Infernus Chaos 
  Dreadnought – is there a datasheet I should use for this model?
  A: Use the Helbrute datasheet on page 33 of Index: Chaos.
  Q: There is no datasheet for an Emperor’s Children Sonic 
  Dreadnought – is there a datasheet I should use for this model?
   A: Use the Helbrute datasheet on page 33 of Index: Chaos. It 
  must replace its <Mark of Chaos> keyword with Slaanesh, it 
  must replace its <Legion> keyword with Emperor’s Children, 
  and it has two additional wargear options; it may take a doom 
  siren, and it may replace its multi-melta with two blastmasters.
  Q: There is no datasheet for a Chaos Vindicator Laser Destroyer – 
  is there a datasheet I should use for this model?
  A: Use the Deimos Pattern Vindicator Laser Destroyer datasheet 
  on page 8 of Imperial Armour Index: Forces of the Adeptus 
  Astartes. It gains the Hellforged keyword and must replace 
  all of its Faction keywords with the following: Chaos, Heretic 
  Astartes, <Mark of Chaos>, <Legion>.
  In addition, it gains the following ability:
  ‘Machina Malefica: At the end of each Fight phase, roll a 
  number of D6 for this model equal to the number of models that 
  were slain by it during this phase; for each dice that scores a 5+, 
  this model regains one lost wound. This model cannot regain 
  lost wounds by any other means.’
  In addition, it gains the following weapon:
  ‘Weapon 
  Range Type 
  S 
  AP D Abilities
  Infernal Hunger Melee Melee User -3 1 
  -’
  Q: Can a Chaos Vindicator Laser Destroyer make use of the 
  Linebreaker Bombardment Stratagem from Codex: Chaos 
  Space Marines?
  A: No.
  Q: Is the plasma destroyer supposed to have an ability that can 
  inflict mortal wounds upon the firer if a hit roll of 1 is made for it?
  A: No.
  Q: Can a Hellforged Contemptor Dreadnought, Hellforged 
  Deredeo Dreadnought or a Hellforged Leviathan Dreadnought 
  use the Fire Frenzy Stratagem from e.g. Codex: Chaos 
  Space Marines?
  A: No.
  Q: Does the Plague Pact Stratagem in Codex: Death Guard affect 
  Arch-daemonic Rituals?
  A: No.
  Q: How many times can a Chaos Decimator armed with two 
  soulburner petards suffer a mortal wound as a result of a hit roll 
  of 1 for an attack made with this weapon? 
  A: Once per weapon (i.e. in the case of a model armed with two 
  soulburner petards, this model could suffer 1 mortal wound 
  when resolving the attacks of the first weapon, then another 
  mortal wound when resolving the attacks of the second weapon).
  
  5
  IMPERIAL ARMOUR – INDEX: FORCES OF CHAOS
  BLAST APPENDIX
  The following weapons gain the Blast ability, as described in the 
  Warhammer 40,000 Core Book:
  • Balefire missiles
  • Belicosa volcano cannon
  • Blight grenade
  • Dreadhammer siege cannon
  • Dual turbo-laser destructor
  • Fellblade accelerator cannon - HE shells
  • Grav-flux bombard
  • Greater havoc launcher
  • Ironstorm missile pod
  • Magna-melta cannon
  • Mori quake cannon
  • Plasma Destroyer
  • Reaver laser blaster
  • Reaver melta cannon
  • Rot cannon
  • Scorpius multi-launcher
  • Soulburner bombard
  • Soulstalker missiles
  • Sunfury plasma annihilator
  • Thunderhawk heavy cannon
  • Titan plasma blastgun - Normal
  • Titan plasma blastgun - Overcharged
  • Turbo-laser destructor
  • Twin volcano cannon
  • Vengeance launcher
  AIRCRAFT APPENDIX
  The following datasheets gain the Aircraft keyword:
  • Chaos Fire Raptor Assault Gunship
  • Chaos Hell Blade
  • Chaos Hell Talon
  • Chaos Sokar Pattern Stormbird Gunship
  • Chaos Storm Eagle Assault Gunship
  • Chaos Thunderhawk Assault Gunship
  • Chaos Xiphon Interceptor
  
SOURCE: textdata/thevault/Warhammer/40k/9th Edition - Warhammer 40K/Errata & FAQs/3. Forgeworld/40K_9th_ed_Imperial_Armour_Update_Index_Forces_of_Chaos_Ver_1.0.pdf