
When the Ordo Xenos found out, they had the Chapter Master executed and excommunicated his brothers. (100)The Chapter was friendly with a group of xenos and collaborated with them a bit too frequently. Agents were deployed to remove the impure Marines, but when they failed the Chapter broke their bonds with the Imperium. (96-99)A major mutation appeared in the Chapter's gene-seed. (91-95)Near the brink of annihilation, the Marines took an extremely cowardly or horrible action to preserve their Chapter, and were excommunicated for this. This twisted their minds and corrupted them. (81-90)The Chapter's forces were stationed in an area with a powerful Warp presence. Little did he know a daemon was bound to it, which whispered dark words to its wielder. (71-80)A battle-brother discovered a mighty weapon. (56-70)The Marines began indulging in the heretical and eventually became consumed by it. (46-55)It was discovered that the Chapter's progenitor was a Traitor Legion (roll on Traitor Legion table to decide which). (41-45)The Chapter rebelled, with originally good intentions, against the Imperium. The Ordo Malleus made them pay gravely for this when they found out. (31-40)They tried to fight heresy with heresy. (16-30)Marines in the Chapter dabbled in the dark arts and thought nobody would find out. (6-15)The Chapter was friends with the wrong people and ended up being punished because of this. they then began gathering followers to wage war The Chapter fought against the Inquisition’s warriors and failed. (1-5)The Chapter Master was accused of heresy by the Inquisition. (10)Legion Warband, roll again for secondary element such as allied groups and units (this can stack)


(9)Renegade Chapter, roll again for secondary element such as allied groups and units (this can stack)

(6-8)Legion Warband (a warband of one of the nine original Chaos Space Marine Legions) (1-5)Renegade Chapter (once a loyal Space Marine Chapter, now serving Chaos)
