Drill Demon is a Random Event that requires you to do a series of warm-ups to be sent on your way. Sergeant Damien the Drill Demon is your instructor, he will tell you to do warm-ups on the appropriate mats, these will vary from Push ups, Sit ups, Star Jumps and simply Jogging on the Spot, if you do a warm-up on the wrong mat however, then you will be doing warm-ups until you manage to get it right, once you have completed the warm-ups Sergeant Damien will send you on your way along with a piece of the camo outfit if you don't have the full set already, otherwise he will reward you with gems or coins.