Redblade

In the upper reaches of Theron, vast arco-refineries harvest the volatile atmospheric lightning storms, and it was this that brought the orks. The Space Wolves sent by Kjarl Grimblood to relieve the Adeptus Mechanicus defenders fight valiantly – none more so than the fierce young Blood Claw Drenn – but it is the expertise of the assigned Deathwatch kill-team that promises to turn the greenskin tide. Even so, Drenn's reckless actions once again draw the wrath of his commander, and the self-styled 'Redblade' must pay the price...
Read it because
It's a look at one of the ways in which the Deathwatch recruit – and shows how they fight alongside other Space Marines, in this case Space Wolves who're not keen on playing nicely with others.