I'm not sure if they want to convince people that this is filmed in America, or they are making a joke out of it intentionally. Here are some glaring mistakes that I noticed that made this movie borderline unwatchable:
-Soldiers being transported around in a civilian truck -Soldiers carrying AKs. Their uniforms say US army... -Soldiers wearing covers, while others are not -Over half of the vehicles seen in the movie are not sold in the US -You can clearly see the steering wheel on the right side of the vehicle -Characters breaking accent and using strange language for everyday objects i.e. "bandage" instead of "bandaid".
Overall it was a pretty awful movie. They should have just had the movie set in Australia so there wouldn't be so many mistakes.