Ok, threw together a 1000 point Tzeentch/CSM list. I'm sure it's terrible.
+++ Thousand Sons (999pts) +++
++ Chaos Space Marines: Codex (2012) (Combined Arms Detachment) ++
+ (No Category) +
Force Options (Supplement options here) [No unique force (Vanilla CSM Codex)]
+ HQ +
Sorcerer [2x Additional Mastery Level, Aura of dark glory, Bolt Pistol, Force Stave, Mark of Tzeentch, Power Armour, Spell familiar]
+ Troops +
Chaos Space Marines [9x Chaos Marine with Boltgun, Chaos Rhino, Meltagun, Meltagun, Veterans of the Long War]
····Aspiring Champion [2x Bolt Pistol, Melta Bombs]
Thousand Sons [Chaos Rhino, 4x Thousand Son]
····Aspiring Sorcerer [Force Stave]
+ Heavy Support +
Obliterators [Mark of Tzeentch, Obliterator]
Obliterators [Mark of Tzeentch, Obliterator]
++ Chaos Daemons: Codex (2013) (Combined Arms Detachment) ++
+ HQ +
Daemonic Heralds
····Herald of Tzeentch [Psyker Level 3]
+ Troops +
Pink Horrors of Tzeentch [11x Pink Horrors]
Pink Horrors of Tzeentch [11x Pink Horrors]