TEXT: 1
  WARHAMMER 40,000 – CODEX: SPACE MARINES
  WARHAMMER 40,000
  CODEX: SPACE MARINES
  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
  Page 151 – Hellblaster Squad
  Change the Power Level to ‘8’.
  Change the second sentence of the unit description 
  to read:
  ‘It can additionally contain up to 5 Hellblasters (Power 
  Rating +8).’
  Page 160 – Drop Pod, Drop Pod Assault
  Change the Matched Play clause to read:
  ‘This model and any units embarked aboard it are 
  exempt from the Tactical Reserves matched play rule, 
  except that if it and any units embarked aboard it have 
  not arrived on the battlefield by the end of the third 
  battle round, they count as having been destroyed.’
  Page 175 – Ultramarines: Codex Discipline
  Change the final sentence to read:
  ‘Units with this tactic that cannot Fly can shoot in 
  a turn in which they Fell Back, but if they do, when 
  resolving an attack made by a model in that unit in the 
  Shooting phase of that turn, subtract 1 from the hit roll.’
  Page 180 – Auspex Scan
  Change the first sentence to read:
  ‘Use this Stratagem after your opponent sets up a unit 
  on the battlefield as reinforcements within 12" of any 
  Adeptus Astartes Infantry units from your army.’
  Page 185 – The Vox Espiritum
  Change the second sentence to read:
  ‘If a model has this Relic, add 3" to the range 
  characteristic of its aura abilities (e.g. Rites of Battle) to 
  a maximum of 9".’
  IMPERIUM NIHILUS: VIGILUS DEFIANT 
  ERRATA
  Since the release of the Imperium Nihilus: Vigilus 
  Defiant book, a number of the rules presented there 
  have been superceded by those found in Codex: Space 
  Marines. This has necessitated the following changes 
  to Imperium Nihilus: Vigilus Defiant:
  Page 174 – Grey Shield
  Change the first paragraph to read:
  ‘Once per battle, at the start of your Movement 
  phase, if your Warlord is on the battlefield, you can 
  choose for Indomitus Crusader units in the same 
  Detachment as your Warlord to gain an additional 
  Chapter Tactic until the start of your next turn. Pick 
  the additional Chapter Tactic from the following: 
  Codex Discipline, Lightning Assault, Siege Masters, 
  Righteous Zeal, Forged in Battle, Shadow Masters, 
  The Flesh is Weak, No Matter the Odds (see Codex: 
  Space Marines).’
  Page 175 – Stratagems
  Remove the Boltstorm, Rapid Fire, Target Sighted 
  and Veteran Intercessors Stratagems from this 
  Specialist Detachment. 
  Designer’s Note: Updated versions of these Stratagems 
  can be found in Codex: Space Marines.
  FAQs
  Q. Can I use a Stratagems from the 2017 edition of Codex: 
  Space Marines if there is not an updated version of that 
  Stratagem in the 2019 edition of Codex: Space Marines?
  A: No, none of the rules found in the 2017 edition of 
  Codex: Space Marines can be used. 
  Q. If I include a Space Marines Detachment in my army, can 
  I use the Stratagems from Codex: Space Marines to affect 
  Adeptus Astartes units from other codexes, such as Codex: 
  Grey Knights or Codex: Deathwatch?
  A: No, as noted in the second paragraph under Space 
  Marine Units and Detachments on page 174 of Codex: 
  Space Marines. 
  
  2
  WARHAMMER 40,000 – CODEX: SPACE MARINES
  Q: Does adding an Officio Assassinorum model to my 
  army with the ‘Operative Requisition Sanctioned’ Stratagem 
  prevent the rest of my army from using Combat Doctrines?
  A: Yes. Note that this model remains part of your army if 
  it is destroyed. 
  Q. If an ability or rule generates an additional hit, (e.g. the 
  Imperial Siege Masters Chapter Tactic), do these additional hits 
  gain any other benefits that would apply to an attack on a hit 
  roll of 6 (e.g. an Infiltrator’s marksman bolt carbine)?
  A: Yes, the additional hits are treated as having rolled 
  the same value as the dice roll that generated them. 
  Q. A lot of rules apply an effect when resolving an attack, 
  rather than attacks. Does this mean the ability only applies for 
  one single attack? For example, the Masterful Marksmanship 
  Stratagem states ‘Until the end of the phase, when resolving 
  an attack made with a special issue boltgun by a model in that 
  unit, add 1 to the wound roll.’
  A: The attack sequence in the core rules is based on 
  attacks being made one at a time. Therefore the wording 
  of these abilities matches how attacks are resolved in 
  the core rules. The ability would still apply to other 
  attacks made by that unit, so long as it satisfied the 
  requirements laid out in the rule. In the above example, 
  the ability would apply for each attack you make with a 
  special issue boltgun by a model in that unit until the 
  end of the phase.
  Q. If I upgrade my Captain in Phobos Armour to be a Chapter 
  Master, should the Infiltrator Comms Array still work with this 
  model, and with its Chapter Master ability instead of Rites 
  of Battle? 
  A: No.
  Q: If an Impulsor unit moves and a unit embarked upon it 
  disembarks as a result of the Assault Vehicle ability, can that 
  disembarking unit then move?
  A: Yes.
  Q. If you have a unit that can shoot twice, (e.g. a Thunderfire 
  Cannon affected by the Suppression Fire Stratagem), and it has 
  the Salamander’s Forged in Battle Chapter Tactic, can it re-roll 
  one hit and one wound roll both times it shoots, or only once?
  A: Both times. The Forged in Battle Chapter Tactic takes 
  effect each time a unit is chosen to shoot with and the 
  unit in question is being chosen to shoot with twice.
  Q: Can a Captain replace his master-crafted boltgun with a 
  chainsword, then replace that chainsword with a storm shield? 
  A: Yes, because these wargear options are two 
  separate bullet points (you cannot choose the same 
  bullet-pointed wargear option for a unit more than 
  once, however).
  Q. Some datasheets that were in the 2017 edition of Codex: 
  Space Marines are not in the 2019 edition, but are still 
  in Index: Imperium 1. Can the versions from Index: 
  Imperium 1 still be used?
  A: Yes, provided an updated datasheet is not found for 
  them elsewhere (e.g. in a codex supplement).
  Q. Does a Chaplain have to be on the battlefield to recite 
  a litany? 
  A: Yes. 
  Q: Can successor Chapters use the Warlord Traits of their 
  founding Chapter? 
  A: Not as presented on page 179 of Codex: Space Marines. 
  However, if you have a successor Chapter and are using 
  a codex supplement of your founding Chapter, that 
  publication will describe how you can select Warlord 
  Traits (and other rules) from your founding Chapter as 
  presented in that publication.
  Q: Can I use the Flakk Missile Stratagem when a model fires a 
  cyclone missile launcher? 
  A: No.
  Q: Which part of a Drop Pod should I measure distances from 
  and to, especially if the model has been assembled so its doors 
  can be opened or closed?
  A: Measure all distances to and from any part of the 
  model, including its doors. If this model has been 
  assembled such that you can lower and raise its doors, 
  then when this model is first set up in the battlefield 
  choose whether the doors will be lowered or raised – 
  you cannot raise or lower the doors thereafter during 
  the battle. 
  Designer’s Note: Choosing to set this model up in the ‘raised 
  doors position’ simply represents the doors closing the instant 
  after its passengers have disembarked.
  Q: When a unit with the And They Shall Know No Fear ability 
  takes a Morale test, is the number that is added to the dice roll 
  for the number of models destroyed in that unit for that turn 
  considered to be a modifier (for the purposes of applying re-rolls 
  before modifiers)? 
  A: No, the number added is not considered to be 
  a modifier. 
  Q: Can a Techmarine Gunner make ranged attacks in the same 
  phase in which it operates a Thunderfire Cannon? 
  A: Yes. 
  Q: Can I use a Signum to increase the Ballistic Skill 
  characteristic of a model when it shoots with a ranged weapon 
  before being removed as a casualty as part of the Astartes 
  Banner ability? 
  A: No. 
  Q: Can the Auspex Scan Stratagem be used to shoot an enemy 
  unit that is set up on the battlefield before the start of the 
  first turn? 
  A: No.
      
  
SOURCE: textdata/thevault/Warhammer/40k/1st-8th Editions (Prior)/8th Edition (2017)/5) FAQs/2019 FAQs/40k 8e - space_marines_en.pdf