Manticores

The Manticores is a Renegade Chapter, originally part of the cursed 21st Founding and successors of the Dark Angels, thus making them a part of the Unforgiven. Despite being titled as traitors, that is far from the truth. Near the ending of the 40th millennium, the Chapter was in pursuit of the infamous Fallen Angel, Cypher, that lead to the Manticores coming into conflict with the Inquisition. Rather than revealing the dark secret of the Fallen, the Manticores took the blame and were thus declared traitors. Now they roam the galaxy, chased by their former comrades, with only their fellow Unforgiven knowing the truth. The Manticores continue to protect the Imperium, while at the same time hunting down the Falllen, in hopes of one day redeeming themselves in the eyes of the God-Emperor.