After his fellow Astartes introduced themselves, Lantus took a moment to evaluate each as they spoke in turn. He wouldn't learn much from a few sentences alone, but any knowledge about his Battle Brothers would be useful. When it came to his turn to introduce himself, he stood up, removing his helmet as he did so. 

"I am Lantus, Battle Brother of the Blood Ravens." He said, clutching his helmet in one hand. "I am designated as a tactical marine, and am newly assigned to the Deathwatch. However, I will perform my duty for the Emperor and the Imperium. Emperor guide us, brothers." Lantus finished, putting his helmet back on as he sat down. 

As he waited for the next Astartes to speak, Lantus looked up, meeting the gaze of the Master of the Forge. The Blackshield hadn't stopped staring at him, or at least in his direction, even as the other Space Marines were introducing themselves. Lantus narrowed his eyes underneath his helmet and held his gaze with the Master of the Forge, annoyed that he was receiving suspicion already, most likely due to his Chapter. It seemed that the Blood Ravens' undeserved reputation had spread even out in this far corner of the Imperium.