Gal Vorbak - Origins: The Gal Vorbak were originally the 1,000 Space Marines of the Serrated Sun Chapter of the Word Bearers led by their Chapter Master Argel Tal, often referred to as the "Crimson Lord". Their Power Armour was painted red (later called "Traitor's Red" during the Heresy) as opposed to the standard pre-Heresy Word Bearer colour scheme of grey, which differentiated them from the rest of the Legion, but would in time be adopted by the rest of the XVIIth Legion during the Horus Heresy to display their new allegiance to the Chaos Gods.While they were in the Eye of Terror, the members of the Serrated Sun Chapter were all killed by a daemon, only to awaken some time later alive once more. All of the humans on their starship were dead and their vessel had sustained critical damage. During the 7-solar-month-long journey that followed out of the Eye of Terror, many members of the Serrated Sun Chapter killed one another and survived the ordeal by drinking their fallen comrades' blood and eating the flesh of their fallen Legion Serfs.When they returned to realspace and their waiting Primarch, they were told that they had only been gone for a few moments in subjective time. After Argel Tal told Lorgar all that had transpired in the Eye of Terror, the survivors were honoured and the Serrated Sun Chapter was renamed the Gal Vorbak, the "Blessed Sons" in the dialect of the Word Bearers' homeworld of Colchis.The members of the Gal Vorbak later suffered from hearing voices for years after their ordeal in the Warp until they began to metamorphose into daemons not long before the Battle of Istvaan V. During the journey to that fateful contest with the Loyalist Space Marine Legions, their armour fused to their flesh and it became impossible for them to remove their helmets. In order to prevent any of their Battle-Brothers from recognising their condition, they all locked themselves in their rooms to "meditate" until the pain and change was over. Following their mutation, the Gal Vorbak were now faster and stronger than even an already superhuman Astartes. Marked by their crimson armour they were a revered elite amongst the Word Bearers, walking embodiments of Lorgar's true vision for his Legion.During the Drop Site Massacre on Istvaan V when the Traitor Legions betrayed their Loyalist brethren, the Gal Vorbak underwent another change. When Lorgar attacked Corax, the Primarch of the Raven Guard Legion, all of the members of the Gal Vorbak became true daemons. Their flesh and Ceramite fused and warped into a new, bestial form, marking them out as amongst the first of the Possessed Chaos Space Marines.After the battle, the Gal Vorbak resumed the form of normal Astartes again, though the battle had proven costly. Only 5 of their number had survived taking on a Primarch in battle to continue to fight in the service of Chaos throughout the rest of the Horus Heresy. The remaining members of the Gal Vorbak became the most feared unit in the Word Bearers Traitor Legion save for their Daemon Primarch Lorgar himself.After the Word Bearers revealed their true nature at Istvaan V, the crimson of the Gal Vorbak spread to the rest of the Legion in fits and starts, and new Gal Vorbak walked with them. These new creatures were weaker than those who first went into the Eye of Terror. Perhaps the flesh and souls they enslaved were of a lesser stock, or perhaps the powers of the Warp, having no need for kindness or to prove their worth as allies any longer, had not invested them with the power of their predecessors. Irrespective of their power or pedigree, there has been no greater defilement of the Emperor's work in creating the Space Marines than these loathsome creatures.