He does know a human when he sees one. Kais just lacks a sense of depth perception, which throws some things out of whack.

His own helmet comes off and he attaches it to his belt, though the antenna stays attached to his ear.

"A Firewarrior is what we call our normal, non-specialized infantry. We are all part of the Fire caste and are the basic warriors so Firewarrior is the obvious term."