TEXT: 1
  WARHAMMER 40,000 – INDEX: XENOS 2
  WARHAMMER 40,000 
  INDEX: XENOS 2
  Official Update Version 1.0
  Although we strive to ensure that our rules are perfect, 
  sometimes mistakes do creep in, or the intent of a rule 
  isn’t as clear as it might be. These documents collect 
  amendments to the rules and present our responses to 
  players’ frequently asked questions. As they’re updated 
  regularly, each has a version number; when changes 
  are made, the version number will be updated, and any 
  changes from the previous version will be highlighted 
  in magenta. Where a version number has a letter, 
  e.g. 1.1a, this means it has had a local update, only in 
  that language, to clarify a translation issue or other 
  minor correction.
  ERRATA
  Pages 14, 15, 16, 31 and 38 – Kustom Force Field
  Change the first sentence of this rule to read:
  ‘If this model is equipped with a kustom force field, 
  friendly Ork units that are entirely within 9" have a 5+ 
  invulnerable save against ranged weapons.’
  Page 16 – Ghazghkull Thraka, The Boss is Watchin’
  Change the first sentence to read:
  ‘If a friendly Ork unit fails a Morale test and they are 
  within 6" of Ghazghkull Thraka, he can restore order 
  with a brutal display of violence.’
  Page 34 – Big Gunz, Grot Krew
  Change the final sentence to read:
  ‘From that point on, each Big Gun and each 2-model 
  group of Grot Gunners act as separate units.’ 
  Page 35 – Mek Gunz, Grot Krew
  Change the final sentence to read:
  ‘From that point on, each Mek Gun and each 5-model 
  group of Grot Gunners act as separate units.’ 
  Pages 50, 52 and 53 – Master of War
  Change the first sentence to read:
  ‘At the beginning of your turn, a single friendly 
  Commander can declare either Kauyon or Mont’ka. You 
  can only use the Master of War ability once per battle, 
  irrespective of how many models in your army have 
  this ability.’
  Pages 53, 56, 57, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73 
  and 74 – Saviour Protocols
  Change this rule to read:
  ‘Saviour Protocols: If a <Sept> Drones unit is within 3" 
  of a friendly <Sept> Infantry or <Sept> Battlesuit 
  unit when an enemy attack successfully wounds it, you 
  can allocate that wound to the Drones unit instead of 
  the target. If you do, that Drones unit suffers a mortal 
  wound instead of the normal damage.’
  Page 62 – XV95 Ghostkeel Battlesuit, Stealth Field
  Change the first sentence to read:
  ‘Models shooting at a Stealth Drone or any Ghostkeel 
  Battlesuit that is within 3" of any friendly Stealth Drones 
  subtract 1 from their hit rolls.’
  Page 72 – Longstrike, Fire Caste Exemplar
  Delete the word ‘other’ from this ability.
  Page 85 – Hive Mind Discipline, Catalyst
  Change the last sentence to read:
  ‘Until the start of your next Psychic phase, each time 
  that unit loses a wound, roll a D6; on a 5+ the unit does 
  not lose that wound.’
  Pages 87, 105, 106 and 107 – Prehensile pincer tail
  Change the Strength characteristic of this weapon in all 
  instances to ‘User’.
  Page 89 – Tervigon, Massive crushing claws
  Change the AP characteristic to read ‘-3’.
  Page 98 – Deathleaper, It’s After Me!
  Change the last sentence of this ability to read: 
  ‘At the end of any or your Movement phases Deathleaper 
  can spring from its hiding place – you can set it up 
  anywhere that is within 6" of the enemy Character you 
  chose, but more than 1" away from any enemy models 
  (if the enemy Character is not on the battlefield 
  when Deathleaper is revealed, set it up anywhere on 
  the battlefield that is more than 9" from any enemy 
  models instead).’
  Page 104 – Biovores, Spore Mine Launcher
  Insert the following at the end of the rules text:
  ‘This weapon can target units that are not visible to the 
  firer, but it cannot be used to fire Overwatch.’
  Page 109 – Sporocyst
  Change the unit description to read:
  ‘A Sporocyst is a single model armed with a spore node 
  and five deathspitters.’
  Insert the following at the end of the rules text for the 
  Spore Node rule:
  ‘This weapon cannot be used to fire Overwatch.’
  
  2
  WARHAMMER 40,000 – INDEX: XENOS 2
  Page 114 – Magus, Familiars
  Change the second sentence to read:
  ‘If they do so, the Magus can immediately attempt to 
  manifest an additional psychic power.’
  Page 115 – Primus
  Delete the Familiar profile from the Primus datasheet.
  Pages 116 and 144 – Heavy rock cutter
  Add the following to the Abilities text:
  ‘When attacking with this weapon, you must subtract 1 
  from the hit roll.’
  Pages 123 and 144 – Vanquisher battle cannon
  Change the Strength to read ‘8’.
  Page 130 – Units table
  Change the models per unit value for Runtherd to 
  read ‘1’.
  Change the models per unit value for Nobz to 
  read ‘5-10’.
  Change the models per unit value for Nobz on Warbikes 
  to read ‘3-9’.
  Change the models per unit value for Deffkoptas to 
  read ‘1-5’.
  Page 134 – Units table
  Add the following line to the units table:
  ‘Tactical Drones  |  4-12  |  See right’
  Page 137 – Support Systems, Drone Controller
  Change the Drone Controller rule to read:
  ‘Friendly <Sept> Drone units within 6" of any models 
  equipped with a drone controller add one to any hit rolls.’
  Page 138 – Units table
  Change the models per unit value for Hive Guard to 
  read ‘3-6’.
  Change the models per unit value for Tyrant Guard to 
  read ‘3-6’.
  Page 138 – Ranged Weapons table
  Change the line that reads ‘Spinefists (Ravener)’ 
  to read ‘Spinefists (Ravener, Tyranid Warriors and 
  Tyranid Shrikes)’.
  Page 142 – Genestealer Cults Points Values
  Change the points per model value for Purestrain 
  Genestealers to read ‘10’.
  Change the points per weapon value for Purestrain 
  talons to read ‘0’.
  Add an ‘Other Wargear’ table for the following:
  ‘Cult icon  |  20’
  FAQs
  ORKS
  Q. The Ork Battlewagon’s Mobile Fortress ability says the 
  Battlewagon ‘ignores the penalty for moving and firing Heavy 
  weapons’. Its Open-topped ability says that ‘restrictions and 
  modifiers that apply to this model also apply to its passengers’. 
  Does that mean that a unit embarked also ignores the penalty 
  for firing Heavy weapons if the battlewagon has moved?
  A. No. 
  Q. Do Spanners have a separate points cost in units of Lootas 
  and Burnas?
  A. No. They cost the same ‘points per model’ as the unit 
  they are included in.
  TYRANIDS
  Q. Monstrous scything talons say that if the bearer has more 
  than one pair it can make one additional attack. How many 
  extra attacks does a Trygon, which has three pairs of monstrous 
  scything talons, make?
  A. It makes a total of one additional attack. 
  Q. The Onslaught psychic power says that the affected unit 
  can Advance and fire in the same turn. Does this mean it gets 
  to Advance again and then fire, or that it can fire even if it has 
  Advanced this turn?
  A. The unit can fire even if it has Advanced this turn. It 
  does not get to Advance again. 
  Q. If a Hive Tyrant with lash whips is slain, which line of the 
  damage table do I use when making its attacks before removing 
  the model as a casualty?
  A. Use the bottom line of the damage table, as if it still 
  had one wound remaining.
  Q. A Tervigon can only replace Termagants in a unit that 
  is equipped with Fleshborers. If those models were equipped 
  with adrenal glands and/or toxin sacs, can those models still 
  be replaced? 
  A. Yes. 
  GENESTEALER CULTS
  Q. If I include a Detachment of Astra Militarum in a 
  Genestealer Cult army using the Brood Brothers rule, do the 
  Astra Militarum units gain the Genestealer Cults 
  keyword and the Cult Ambush ability?
  A. No and no. 
  Q. Can I have a Battle-forged army that consists of one 
  Detachment of Genestealer Cults, one Detachment of 
  Astra Militarum (using the Brood Brothers rule) and one 
  Detachment of Tyranids?
  A. Yes.
  
SOURCE: textdata/thevault/Warhammer/40k/1st-8th Editions (Prior)/8th Edition (2017)/5) FAQs/2017 FAQs/40K_8th_ed_Update_Index_Xenos_2_ver_1.0.pdf