Warhammer 40,000, Dawn of war III. 1, The hunt for Gabriel Angelos

The Blood Ravens' Chapter Master Gabriel Angelos is missing in action, at a time when the Space Marines under his command need him most. The orks are massing on Cyprus-Ultima, and the threat of the eldar refuses to lessen. With the future of the war resting on Angelos's leadership, superhuman abilities and ancient weaponry, acting commander Balthazar tasks a small squad of close allies to track down the Chapter Master, but they'll need to strike...