Complex sentence: She was on guard duty while a skulking Midnighter was prowling in the background, although she took notice of him while training new coda requites she chose to continue the seminar instead of reporting him.
Split into simpler sentences: She was on guard duty while a skulking Midnighter was prowling in the background. Although she took notice of him while training new coda recruits, she chose to continue the seminar instead of reporting him.