Scratching his grey flecked beard Brother Sergeant Leandros stepped into the briefing room aboard The Hammer of Man. The gathered scouts quieted and as they did Leandros heard the whisper that followed him throughout the Imperium. "The Proditor." Stepping towards the data table Leandros traced the scar above his left eye. "The Hammer of Man has detected a massive structure inside The Black Reef. The Adeptus Mechanicus has been unable to identify the structure or its intent."
Leandros displayed a map of The Black Reef on the data table. "We are charged with piercing The Reef here," he said pointing to The Black Reefs western edge. "We will enter in a Thunderhawk escorted by two gunships. Once the structure is found we will report what we have discovered and seize or destroy it."
Leandros looked at the scouts his deep set eyes boring into them. "The Emperor's enemies are stirring within The Reef. To meet them the Emperor has called the Ultramarines. You are the tenth company of the Ultramarines. Part of us and yet not. What lays before you marks your first trial towards becoming a true brother. Remember the teachings of the Codex Astartes. Let it guide you in carrying out the Emperor's will." For a moment Leandros paused lost in the past. "Use the Codex Astartes to make you a fierce weapon for the Emperor but do not follow so closely that you become blind to the Emperor's will. That is the true test of an Ultramarine."