Editing Warhammer 40,000/8th Edition Tactics/Imperial Guard (section)

====Maintaining Regiment Doctrines====
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Most units in {{W40Kkeyword|Astra Militarum}} detachments (excluding Superheavy Auxiliary detachments) benefit from a regimental doctrine if every unit in the detachment has the same {{W40Kkeyword|Regiment}} and/or is on the list of units that do not break regimental doctrine. These units include:

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*{{W40Kkeyword|Aeronautica Imperialis}}. Not "this unit, and that unit", but all Aeronautica units, like Vendettas.
*{{W40Kkeyword|Militarum Auxilla}} AKA Abhumans, each and every single one.
*Ministorum Priest and Crusaders. Not {{W40Kkeyword|Adeptus Ministorum}} units, ''just those two''. 
*{{W40Kkeyword|Officio Prefectus}} AKA Commissars.
*{{W40Kkeyword|Militarum Tempestus}} units won't prevent your army from getting a Doctrine, but they themselves won't get their {{W40Kkeyword|Storm Troopers}} doctrine ''unless'' all other units are Tempestus themselves (or people from this list). So, if you want to bring Artillery or other vehicles, you'll need to bring them in a separate Spearhead detachment.
*{{W40Kkeyword|Scholastica Psykana}} AKA Primaris Psykers ([[Primaris_Librarian|no relation]]), Wyrdvanes, and Astropaths.
*Tech-priest Enginseer (either your copy, the elite with {{W40Kkeyword|Astra Militarum}}, or AdMech's copy, the HQ without) and Servitors. Not {{W40Kkeyword|Forge world}} units, just those three. Remember ''this is an Astra Militarum Detachment''. They DON'T gain a Dogma, NOR AdMech Stratagems, Relics or Warlord Traits. [[Warhammer_40,000/Tactics/Adeptus_Mechanicus(8E)|If you want those rules]], you can bring them in a separate Vanguard detachment, for all the good it'll do you.  

As alluded to above, Superheavy Auxiliary Detachments don't benefit from Doctrines. If you want a LoW with a Doctrine you need to take them in either a  Superheavy Detachment ('''3-5!''' Lords of War), a cheaper Supreme Command Detachment (3-5 HQs plus '''0-1 LoW'''), or give it the '''Steadfast Leviathan''' Tank Ace trait in a Superheavy Auxiliary Detachment.

*The '''[[Death Korps of Krieg|{{W40Kkeyword|Death Korps of Krieg}}]]''' and '''[[Elysian Drop Troops|{{W40Kkeyword|Elysia}}]]''' can also be selected as your Regiment, though they do not have a proper Regimental Doctrine. Instead, they get a modified unit and Order selection with several choices unique to them, along with a number of special rules that more or less form a Doctrine. They lack any unique Warlord Traits, Stratagems or Relics, but have access to all the regular ones. Check out their sections towards the bottom of the page for more information.
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