There is a new FAQ out for the Horus Heresy this morning.
https://whc-cdn.games-workshop.com/wp-content/uploads/2018/07/Horus-Heresy-General-Errata-and-FAQ-v1.1.pdf
via the Warhammer Community
https://www.warhammer-community.com/2018/12/02/pre-order-preview-vigilus-defiant-and-chapter-approved/
With the Horus Heresy Weekender over and done, what better time could there be to unveil the latest FAQs from the Age of Darkness?
Get all the latest errata for the Horus Heresy rules and army lists, including a new profile for Magnus the Red, and clarifications, such as how Legion Apothecaries interact with Space Wolves Grey Slayers. There are also new playtest rules that update Destroyers, a selection of Consuls and more. Give us feedback about these changes and they may be fully incorporated into future iterations of the Space Marine Legion army list.
If you have any more questions about the game that you’d love to get answered, send them in – they’ll be considered for future iterations of the FAQ and errata.