Sergeant Lee was a stationed at a bootcamp that housed and trained multiple recruits. After meeting Rook with Pvt. Idle, he walks to the end of the room, instructing Rook to sprint to the other end of the room where he is standing. If Rook were to to sprint, or walk the whole way, he will criticize him, then instruct him to do the excercise again. After Rook successfully completes this, he then orders him to check his map so he can find Sgt. Wojick. After this, he is never seen or heard again.