Your CSM are majorly messed up. The champion is a waste of points and adds nothing to the unit. Your weapon loadout is mish mash because you have a long range anti armour and anti troop weapon which cannot move and shoot but have a short range heavy anti armour and anti infantry weapon, these do not mix. For some reason you have extra armour but you're not exactly in a rush to get any where.HQ:
Kharn the Betrayer: 165 Points
10 Chaos Space Marines. Aspiring Champion with twin linked bolter. One has Auto Cannon and another have melta gun. Dedicated Chaos Rhino with extra armour: 225 Points
11 khorne berzerkers Skull Champion with power fist: 271 Points
5 Havocs. Aspiring Champion. Lascannon, Missile Launcher, Auto Cannon, Heavy bolter: 180 Points
2 Defilers: 300 Points
Chaos Vindicator: 125
Please comment on.
Berzekers need a rhino and you need another troop choice.
You have too many heavy support choices. You have 5 but you're only allowed 3. Drop the havocs because obliterators are a lot better, cons and pros to defiler vs vindicator but I found vindicators to be better and more hard hitting.
I hope that helps!