[Nah, he just takes his job seriously. He's a serious guy. He's just also an example that you can be serious without being a stick in the mud.]

[Heatwave tries to connect the Constructicons he knows to the act of shooting someone in the back and mentally balks. His war didn't have non-combatants, but the Constructicons were probably the closest they might have in the sense of actually shooting someone when it wasn't self-defense, especially someone good.]

[...Different universes were obviously going to mess with his head more than he anticipated.]

I see. I'm glad to see you all right, then. Sounds like you were lucky to survive. [he pauses, noticing the slump and wanting to help.] We're lucky to have you show up here, too. It seems like we'll be needing your expertise.

[because obviously hearing that your function is useful and necessary is good comfort, right? Right? And it's not like he's lying...]