"That is not a problem I face." That sounds like a skill issue to Gadriel. "Your kind has not been engineered well." It's not your fault you don't have 20 extra organs and spend half your life hopped up on stimms.

He snorted. "There have been many times when I was the only survivor." That counts as alone, right? "And we are expected to improvise to meet our objectives." See? He's a free thinker. As long as it can be related to the Codex Astartes, that is.