Factual error: No army flight from Georgia to Iraq would cross central Mexico.
Visible crew/equipment: When Everett is confronted by Victor in the storage unit, the camera and multiple walking crew members can be seen in the reflection of a fish tank. You can see the camera moving in the reflection and matching the frame.
Continuity mistake: When Larry realizes they are in Mexico for the first time and he runs into the square, in the wide shots there are two children playing with a pinata. In the close ups, there is a whole line of children.
Continuity mistake: When Larry says, "Gitr Done", he is holding an M60, yet when he then runs to the Humvee he has an M16 which is noticeably smaller.