At age 25, Major Katie Smith is very young for her rank. Her red beret marks her as a member of the 'RMP' or Royal Military Police.

A person that can read army badges would see that she has the 'marksmen badge' meaning she can shoot the left eyeball of whichever fly you want, and the 'close quarters badge' which means fighting her is like grappling with a chain saw. Her known medals include the Distinguish Service Cross, implying combat at sea as well as the Military Cross for land operations