1) Armorer 2) Artificer 3) Enlisted man 1) Armorer 
Historically, an armourer is a person who makes personal armour, especially plate armour. In modern terms, an armourer is a member of a military or police force who works in an armoury and maintains and repairs small arms and weapons systems, with some duties resembling those of a civilian gunsmith. With the renewed interest in traditional armour ...
Craftsman normally responsible for carrying out minor repairs, cleaning, oiling and polishing armour