How does renegade CSM who are not super into worshiping chaos and mostly just want to fight enemies they consider worthy and lead armies, sound to you Anons? They have a large militia/army of former chapter serfs (represented by cultists) and their primary objective is testing their own martial prowess and overall ability against enemies. Some have fallen to Khornate worship due to this and others are veering into Tzeentchian beliefs because of their love of planning for battle and outmaneuvering, but most are just marines who realized that they were going to me made an example of by a batshit Inquisitor and went rogue.Minimum of Daemon engines and more of a traditional CSM/Havocs/Raptors/Termies/Cultists/Tanks army.