Chaos Space Marine backpacks

Posted by MortiS-the-Lost on Oct 08, 2011; 3:49pm
URL: http://the-lost-and-the-damned.71.s1.nabble.com/Chaos-Space-Marine-backpacks-tp6872696.html


Here's something I've always wondered: why do the vents on Chaos Spacemarine backpacks stick out on those arm things?

I've read about the history of Spacemarine Power-armour - Thunder Armour, Iron Armour, Pre-heresy, Heresy and all that and even where Terminators fit into it all, but I've never found any reference to why the chaos back packs look like they do.
Is it some modification they all made in defiance of the emperor's design? do the vent stalks grow when touched by chaos?

I guess model wise it's to make the Chaos Marines stand out from a distance, but is there a background reason? and if not - why not?

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