When Army Private Tommy Yates (Brian Presley) left his parent's house getting into a taxi, after he decided to re-enlist for another tour, he was wearing a Marine 8-point cap (or cover) instead of the patrol cap or black beret which were the authorized headgear to go with the Desert Camouflage Uniform for US Army personnel.
The M2-HB .50 caliber machine gun on the lead HMMWV is in a bizarre mounting that is nearly flush with the roof. It would make it nearly impossible to traverse and elevate the weapon, and the Gunner would have to hunch down and manually lift a weapon that weighs over 100 lb.
Sarah is shown a box of memorabilia, in particular a photo of Sarah which Tommy claims the deceased carried with him all the time whilst on duty. However the photo is pristine, not a single mark or crease present.