You search for Lieutenant Fimarrin. You've heard he's a pretty cool guy. Before you find him, you pull out your identification card, and write "FP YY BTLN", meaning "Fimmarin Platoon, Yanyan Battalion". You then stick it in your helmet. You find him soon after. "Private , reporting for duty, sir." you salute to Fimarrin. "What do you need Private?" he asks. "Request permission to join your platoon, sir." "Permission granted." Fimarrin salutes back. "We're just about to move out, better get in line."