At the military checkpoint scene, U.S. Army soldiers are seen with a Challenger tank. The U.S. Army does not use the Challenger tank.
When SPC Lawyer McCoy is seen being questioned by the U.S. Army CID in a video, the caption on the bottom of the video says that SPC Layer McCoy's rank is that of a Corporal (CPL), when in fact, his rank is that of a Specialist (SPC).
Angel Salazar's video camera, as shown in the opening scene, is a small, cheap camcorder. However, during the scene where Master Sergeant Sweet is introduced, the camera's shadow suggests a much larger high-end HD camera with wide lens and external microphone is being used.
In one scene, PFC Angel Salazar is seen wearing his rank insignia upside down on his uniform.
The U.S. Army soldiers in the film are all seen wearing the PASGT helmet, which was phased out of the U.S. Army and replaced with the MICH/ACH shortly before when the time period in which movie takes place, mid-2006.
In one scene, PFC Reno Flake refers to SPC Lawyer McCoy as a "Corporal" when in fact his rank is that of Specialist.