Brief summary:
First book is called Betrayal and covers the battle on Istvaan III (no story spoilers for anyone who hasn't read at least the first three books in the Horus Heresy series).
Book provides background, rules, scenarios and character/vehicle profiles as an expansion to the core 6th ED 40K rulebook. Very different powers and wargear to the Space Marine Codex.
Going forward the future titles will move beyond just Space Marines to include more of the forces involved.
I'll be picking this up from Games Day hopefully.
First book is called Betrayal and covers the battle on Istvaan III (no story spoilers for anyone who hasn't read at least the first three books in the Horus Heresy series).
Book provides background, rules, scenarios and character/vehicle profiles as an expansion to the core 6th ED 40K rulebook. Very different powers and wargear to the Space Marine Codex.
Going forward the future titles will move beyond just Space Marines to include more of the forces involved.
I'll be picking this up from Games Day hopefully.
Figures painted in 2016: 4 
"What this game needs is a panda with a chaingun."
"What this game needs is a panda with a chaingun."