[He knew the rules back home, and he knew not only how to succeed, but that he had the ability to do so. Not everyone survived the geneseed implantation or training. He had.]

You. Fought orks. [Excuse his Astartes sized DOUBT.] At your size. [What did you do, kneecap them to death?

[He has no idea what those other things are but if you think he's gonna look impressed? Absolutely not. He is, but he will die before he admits it.]

[He is extremely reasonable. And not overemotional at all. ] Many have disagreed with me. I...only tried to kill one. But I was deceived in doing so.