Warhammer 40k - 2013 Advent Calender Short Story - Torias Telion: The Eye of Vengeance by Graham McNeill

As the daemon lord M’Kar and his forces assault Ultramar itself, the warriors of the Ultramarines muster for war. As the Third Company prepare to take the battle to the enemy, a threat is revealed upon Macragge itself and only the renowned sniper Torias Telion can stop the devastation that will ensue if the foe’s plan comes to fruition.