Yea the archon and the autarch together you may find it to be worth it, especially with the wraith guard.
And here's a little list for your friend to toy around with, considering his limited model selection
+++ Chaos side (1498pts) +++
++ Chaos Space Marines: Codex (2012) (Combined Arms Detachment) (1498pts) ++
+
HQ (520pts) +
Chaos Lord ) [Burning Brand of Skalanthrax, Lightning Claw, Mark of Nurgle, Melta bombs, Power Armour, Sigil of corruption]
Daemon Prince ) [Close Combat Weapon, Gift of mutation, 3x Mastery Level (become Psyker), Nurgle, Power Armour, Spell familiar, The Black Mace, Warlord, Wings]
+ Troops (350pts) +
Plague Marines ) [Chaos Rhino, 2x Meltagun, 4x Plague Marine]
····Plague Champion [Boltgun, Plague Knife]
Plague Marines ) [Chaos Rhino, 2x Meltagun, 4x Plague Marine]
····Plague Champion [Boltgun, Plague Knife]
+ Fast Attack ) +
Heldrake ) [Baleflamer]
+ Heavy Support (458pts) +
Chaos Predator ) [Autocannon, Lascannons]
Chaos Predator ) [Autocannon, Lascannons]
Obliterators [Mark of Nurgle, 3x Obliterator]
Created with BattleScribe (
http://www.battlescribe.net)
(Note: took out squad totals so I don't break any rules hahaha)