Soon after they rescue Ax.
Ax: Ok, I'm taking over this group.
Rachel: Oh no you're not. Why would we follow you?
Ax: I know more about the Yeerks and actually have military training. You're just civilians. For now, at least. I will start you all on a rigorous training regiment.
Marco: No way. I'm not doing the commando thing.
Ax: You will do as I say insect! Give me twenty laps! *cracks tail like a whip*