

The Chaos Space Marines gain access to 5 enhancements, one for each god and then an undivided one. Undivided units on the other hand gain rerolls of 1 when under the influence of one of the two abilities. The CSM Detachment is Slaves to Darkness, and this allows you to grant every unit in your army a mark of chaos – these essentially allow your Dark Pact special rules from the above to trigger on 5’s rather than 6’s making it more worth gambling on the mortal wounds.

You are also allowed to take Khorne Bezerkers, Rubric Marines and Plague Marines, but the total combined can only be up to a quarter of your army. Basically whenever you shoot or fight you can choose to gain Sustained Hits or Lethal Hits, however if you do you take a leadership test with you taking D3 Mortal Wounds on a fail – not a bad trade off really, just be careful you dont cause yourself to drop below half strength and put you in that dangerous Battleshock position. The core mechanic of the Chaos Space Marines is the ability to gamble in order to get one of two buffs at the cost of perhaps taking Mortal Wounds with a Dark Pact.
