TEXT: 1
  WARHAMMER 40,000 – CODEX: DEATHWATCH
  WARHAMMER 40,000 
  CODEX: DEATHWATCH
  Official Update Version 1.4
  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 64 – Special Issue Ammunition 
  Change the first paragraph of this ability to read:
  ‘When this unit fires any ranged weapons from the 
  following list, you can choose for it to fire special 
  ammunition. If you do so, the Bolter Discipline ability 
  does not apply when resolving their shots, but you 
  instead choose one kind of ammunition from the table 
  to the right and apply the corresponding modifier.’
  Designer’s Note: Note that the normal rules for Rapid Fire 
  weapons, as described in the Warhammer 40,000 core rules, 
  continue to apply when shooting a Rapid Fire weapon with 
  special issue ammunition.
  Page 67 – Watch Captain in Terminator Armour, 
  Wargear Options
  Change the first bullet point to read:
  ‘•  This model may replace its storm bolter with a 
  lightning claw, storm shield, thunder hammer or one 
  item from the Terminator Combi-weapons list.’
  Change the second bullet point to read:
  ‘•  This model may replace its relic blade with a lightning 
  claw, storm shield or one item from the Terminator 
  Melee Weapons list.’
  Pages 68 and 70 – Librarian and Chaplain, 
  Wargear Options
  Change the first bullet point to read:
  ‘•  This model may replace its bolt pistol with a boltgun 
  or one weapon from either the Pistols or Terminator 
  Combi-weapons list.’
  Page 72 – Veterans
  Replace the Mixed Units ability with the following:
  ‘Mixed Unit: A unit of Veterans can contain models with 
  different Toughness characteristics. If this is the case, 
  use the Toughness characteristic of the majority of the 
  models in the unit when the enemy makes wound rolls 
  against it. If there is no majority, the Deathwatch player 
  can choose which of the values is used. For the purposes 
  of the Bolter Discipline ability and for determining what 
  models a vehicle can transport, Terminators have the 
  Terminator keyword, Bikers do not have the Infantry 
  keyword and instead have the Biker keyword, and 
  Vanguard Veterans have the Jump Pack keyword.
  For the purposes of setting up on or moving through 
  Battlefield Terrain, this unit is treated as an Infantry 
  unit, even if it contains any Biker models.’
  Designer’s Note: This is a slight abstraction which means 
  that a Biker model in a Veterans unit behaves slightly differently 
  to other Biker models in other units (for example, they can end 
  a move on the upper floors of a ruin), but it helps to minimise 
  unusual and complicated effects that could come about from 
  forcing one model from a unit to move and benefit from cover in 
  a different way to other models from the same unit.
  Page 72 – Veterans, Wargear Options
  Change the second bullet point to read:
  ‘Up to 4 Veterans may replace their boltgun with an item 
  from the Heavy Weapons list. If they do so, those models 
  cannot be given any other wargear options from this 
  wargear options list.’ 
  Change the third bullet point to read:
  ‘Any Veteran may replace their boltgun with a heavy 
  thunder hammer (pg 91). If they do so, that model 
  cannot be given any other wargear options from this 
  wargear options list.’  
  Page 72 – Veterans, Vanguard Strike
  Change the first sentence of this ability to read: 
  ‘During the Movement phase, Vanguard Veterans 
  can move across models as if they were not there, and 
  when moving across terrain features, vertical distance 
  is not counted against the total these models can 
  move (i.e. moving vertically is free for these models 
  in the Movement phase). During the Charge phase, 
  Vanguard Veterans can move across models (other than 
  Buildings) as if they were not there.’
  
  2
  WARHAMMER 40,000 – CODEX: DEATHWATCH
  Pages 73, 77 and 91 – Intercessors, Reivers and Armoury 
  of the Deathwatch, Grapnel Launchers
  Change the first sentence to read:
  ‘When models with grapnel launchers move in the 
  Movement phase, do not count any vertical distance 
  they move against the total they can move (i.e. 
  moving vertically is free for these models in the 
  Movement phase).’
  Page 73 – Intercessors, Wargear Options
  Change the second and third bullet points to read:
  ‘•  For every five Intercessors and/or Intercessor 
  Sergeants, one may take an auxiliary 
  grenade launcher.’
   •  The Intercessor Sergeant may either replace their bolt 
  rifle with a chainsword, power sword or power fist (pg 
  91) or take a chainsword, power sword or power fist in 
  addition to their other weapons.’
  Designer’s Note: This errata reflects the updated datasheet 
  changes found in Chapter Approved 2018.
  Page 73 – Intercessors, Inceptor Strike 
  Change the first sentence of this ability to read:
  ‘During the Movement phase, Inceptors can move across 
  models as if they were not there, and when moving across 
  terrain features, vertical distance is not counted against 
  the total these models can move (i.e. moving vertically is 
  free for these models in the Movement phase). During 
  the Charge phase, Inceptors can move across models 
  (other than Buildings) as if they were not there.’
  Page 87 – Corvus Blackstar, Infernum halo-launcher
  Change the ability text to read:
  ‘If an enemy unit that can Fly targets a supersonic model 
  with an infernum halo-launcher in the Shooting phase, 
  your opponent must subtract 1 from the subsequent 
  hit rolls.’
  Page 89 – Hand Flamer
  Change this weapon’s type to read ‘Pistol D6’.
  Page 95 – Teleportarium
  Replace the second sentence with the following:
  ‘For each CP spent on this Stratagem you can set up either 
  one Deathwatch unit that only contains Infantry models 
  or one Deathwatch Dreadnought in a teleportarium 
  chamber instead of placing it on the battlefield.’
  Page 96 – Targeting Scramblers
  Change the rules text of this Stratagem to read: 
  ‘Use this Stratagem after an enemy T’au Empire unit 
  that is equipped with one or more markerlights has 
  resolved all attacks in the Shooting phase. Select one 
  Deathwatch unit from your army and immediately 
  remove all markerlight counters from that unit.’
  Page 103 – Points Values, Other Wargear
  Delete the ‘Blackstar cluster launcher’ row.
  FAQs
  Q: How do Dragonfire bolts behave when shooting units that 
  aren’t in cover, but have a rule that means they have ‘the benefit 
  of cover’ (e.g. Jormungandr units with the Tunnel Networks 
  ability)? Would you still add 1 to the hit rolls for Dragonfire bolts?
  A: No. You add 1 to the hit rolls against units that are in 
  cover (i.e. entirely on or within a terrain feature). Units 
  receiving the benefit of cover while not being in cover do 
  not count.
  Q: How does the xenophase blade interact with invulnerable 
  saves that don’t allow saves to be re-rolled (e.g. from an 
  Archon’s Shadowfield ability, or the Chaos Daemons’ Warp 
  Surge Stratagem)?
  A: In such cases, the successful invulnerable saves must be 
  re-rolled. The intent of the wording of Shadowfield and 
  Warp Surge is to prevent a re-roll of an unsuccessful save, 
  not to prevent an obligatory re-roll of a successful one.
  Q: If I use the Castellan of the Black Vault Warlord Trait 
  on a weapon with multiple profiles, like a combi-weapon or 
  guardian spear, does the additional damage apply to all of that 
  weapon’s profiles?
  A: Yes.
  Q: Can a Watch Captain replace his chainsword and master-
  crafted boltgun with a storm bolter and another chainsword, 
  and then replace his ‘new’ chainsword with either a relic blade or 
  xenophase blade?
  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: In a unit with a mixture of different model types, if not every 
  model has a certain keyword, such as Phobos or Mark X 
  Gravis, is that unit considered to be a unit with that keyword? 
  A: No. A Deathwatch unit is only considered to have 
  that keyword if every model in the unit has that keyword. 
  If an ability asks you to pick a model (rather than a unit) 
  with a specific keyword, a model with the appropriate 
  keyword in a mixed unit can still be picked. 
  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: When an Aeldari unit that can Fly is ‘set up’ on the 
  battlefield as reinforcements (for example, from ‘The Webway’) 
  within 12" of a Deathwatch unit from your army, can that 
  Deathwatch unit use both the Intercepting Volley and Auspex 
  Scan Stratagems to effectively shoot that unit twice?
  A: Yes. A unit that arrives as reinforcements is treated as 
  having moved for all rules purposes. 
  
  3
  WARHAMMER 40,000 – CODEX: DEATHWATCH
  Q: Can I use the Tome of Ectoclades to effectively give the Mission 
  Tactics ability to a Deathwatch unit that would not otherwise 
  have it (either because that unit is not part of a Deathwatch 
  Detachment or because it is not an Infantry, Biker or 
  Dreadnought unit)?
  A: Yes.
  Q: If I use the Hellfire Shells or Flakk Missile Stratagem and I 
  hit, do I continue to roll to wound and do damage normally in 
  addition to doing mortal wounds?
  A: No, the normal attack sequence ends.
  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.
  
SOURCE: textdata/thevault/Warhammer/40k/UNSORTED (help requested)/1st-8th Edition - Warhammer 40K Archives/8th/FAQ & Errata/Codex Deathwatch 1.4.pdf