Chaos Renegades are up next from the Warhammer Community.
Via Warhammer Community
The original Traitor Legions aren’t the only Chaos Space Marines in the galaxy, and the last ten millennia have seen thousands of Space Marines betray the Emperor and fight against the Imperium. Some of these Renegade Chapters have become feared names in their own right, from the Red Corsairs to the Crimson Slaughter. Meanwhile, Chaos armies of all stripes often seek aid from shadowy allies, whether it’s the other Legions, the mysterious Fallen or, for the most influential, the legendary Fabius Bile. Today, we’re looking at using Renegades in your games and how every army can make use of allies
Unlike in previous editions, this works on all Chaos Space Marine Infantry, and so, with a lucky roll, you could be looking at Toughness 6 Plague Marines or Berzerkers with 3 base Attacks.