Easy, try putting in some Death Metal band that centers their lyrics and song titles on decay, rotting bodies, mass graves, etc. etc.
I heard Skrillex has taken a lot of his inspiration from the Emperor's Children noise marines. Personally I love to deploy to the build-up of Slayer's Raining Blood (or Vader's cover) or the fine blend of metal/humor of Raubiter, whom has a whole album named "Det finns bara krig" (There is only war).
Id rather say something like this goes well with the Nurgles cavalcades and the Carnivals of Chaos that follow in their wake: View: http://www.youtube.com/watch?v=GAPwybeoH6E View: http://www.youtube.com/watch?v=l39SRgzXSYY
Amon Armath - Tattered banners and blood flags (General CSM.) Debauchery - Blood for the blood god (World Eaters) Anaal Nathrakh - When humanity is cancer (Iron Warriors) Anaal Nathrakh - Submission is for the weak (Night Lords) Gorgoroth - Sign of an open eye (Black Legion) The Berzerker - No one wins (Death Guard) Cannibal Corpse - Evisceration Plague (Death Guard, again) Whitechapel - Father of lies (Fallen Angels) Thats all I have for now.
I honestly think dawn of war 2 captured chaos music rather well in my opinion heck its my favorite one. They should build around this kind of theme for them in my opinion. I mean these two themes oozes what the factions about in my honest opinion.
