Changes

====Power Armour====During the time of the [[Horus Heresy]], Crusade-pattern power armor armour was being phased out in favor favour of more advanced designs for the [[Space Marine Legion]]s. However, due to intense battles, both loyalist and traitor forces had to revert to older armor armour marks to make up for losses, often scavenging from fallen comrades. The armor armour of the Traitor Legions from this period often displayed the chaotic and tumultuous nature of the times, featuring studded and riveted plasteel plates instead of the later smooth ceramite designs.{{Fn|1b}}

Chaos Space Marines frequently customized customised their armor armour with crests, horns, and other grotesque decorations. Newly turned renegades might still wear armor armour close to their original Chapter's standard gear, marked only by defiled imperial Imperial symbols. Over time, prolonged exposure to the warp Warp transformed their armorarmour, leading to mutations like spines, scales, or flickering warp energy.{{Fn|1b}}