Crimson Night (Blood Angels) (Warhammer 40,000)

Rich in iridium deposits, the mining world of Merron is a valuable resource for the Imperium. When a company of Doom Eagles arrives to take over garrison duties from the Flesh Tearers, they find the locals completely traumatised by their contact with these savage warriors. As civil unrest spreads and rumours fly, the Doom Eagles are forced to investigate exactly what manner of evil is preying on the people of Merron.

Read it because
As well as providing insights into the nihilistic, death-obsessed Doom Eagles Space Marines, this story shows the terror that the Flesh Tearers inspire in not only their foes, but their allies. With bloodthirsty and savage friends like them, who needs enemies?