Whoa, Imperial Guard rules incoming....... hmmmm where are my tanks.
via the Warhammer Community
this time on the new Astra Militarum rules in the book
If you’ve got Codex: Space Marines, you’ll be familiar with this concept, which enables you to custom build your own factional rules – in this case, your own Regimental Doctrine – instead of choosing from a pre-existing set. To do so, you pick two rules from the 12 options available to form your Regimental Doctrine, based on your favoured style of gameplay or the narrative you’ve created for your army.