Moritats

Moritat was an unofficial designation given to certain Astartes of the ancient Legiones Astartes, who displayed suicidal urges and a blatant disregard for overall combat doctrine. Operating independently on the battlefield, these individuals were often employed as efficient shock assault troops and tactical assassins. From its earliest days, the Raven Guard Legion employed more Moritats than did many others. The individuals assigned to this duty were often those considered extreme in their methods even by the cold-blooded Xeric, the original Terran techno-barbarian tribesmen who had composed the XIXth Legion at the First Founding, and they were often used — willingly — to undertake missions from which they were not expected to return.