To be fair, the bootcamp part WAS a joke. Mostly. He really doesn't know what else the Resistance would need a school for, though.

He growls a bit at the implication that he can't walk, able to overhear Zero's conversation, but ignores it. "Ten minutes, huh? Well, go ahead and lead the way then. And please, don't hold back on my account." Fefnir starts walking a bit faster to prove his point, ignoring the pain his body feels from the increased pace.