Given the question: Build a movie plot around this: What does Swofford discovers about his girlfriend, after he returns home to his family? She has a new boyfriend.
The answer is:
In 1989, Anthony "Swoff" Swofford (Jake Gyllenhaal) attends U.S. Marine Corps training before being stationed at Camp Pendleton. Claiming that he joined the military because he "got lost on the way to college", Swofford finds his time at Camp Pendleton difficult, and struggles to make friends. While Swofford feigns illness to avoid his responsibilities, a "lifer", Staff Sergeant Sykes (Jamie Foxx), takes note of his potential and orders Swofford to attend his Scout Sniper course.After gruelling training, the Scout Sniper course is left with eight candidates, among them Swofford, now a sniper, and Swofford's roommate Corporal Alan Troy (Peter Sarsgaard) who becomes his spotter. When Iraq invades Kuwait, Swofford's unit is deployed to the Arabian Peninsula as a part of Operation Desert Shield. Eager for combat, the Marines find themselves bored with remedial training, constant drills, and a routine monotony that feeds their boredom, and prompts them to talk about the unfaithful girlfriends and wives waiting for them at home. They even erect a bulletin board featuring photographs and brief notes telling what perfidies the women had committed.Swofford obtains unauthorized alcohol and organizes an impromptu Christmas party, arranging for Fergus (Brian Geraghty) to cover his watch so he can celebrate. Fergus accidentally sets fire to a tent while cooking some sausages and ignites a crate of flares, waking the whole camp and enraging Staff Sergeant Sykes, who demotes Swofford from lance corporal to private and puts him on "shit-burning" detail. The punishments, combined with the heat, the boredom, and Swofford's suspicions of his girlfriend's infidelity, give Swofford a mental breakdown, to the point where he threatens Fergus with a rifle, then orders Fergus to shoot him instead.Later, Operation Desert Storm begins and the Marines are sent to the Saudi Arabia-Kuwait border. Swofford learns from Sykes that Troy concealed his criminal record when enlisting and will be discharged when the unit returns home. Troy...