In sight: A spy is among us!(RP)

(READ!!! Very important.)

Rules:
1. No Gary-stus, Mary-sues, or recolors.
2. Your character has be affiliated with a base/army.
3. It doesn't matter if you cuss or not.

Plot:
Your FC works for a army, probably one of the most powerful in the world... But suddenly, one day a intruder has been detected. Your FC was put in charge of tracking the intruder down... after hours of searching, with other soldiers running rampant... He/she gets a glimpse of her and her green eyes... but it was only for a split second seeing she moved extremely fast...