Other mistake: The military personnel are part of the "Army", but wear USMC uniforms.
Other mistake: The kids are "sneaking" into an enemy area but the lights on their helmets and lights inside the helo are on. (01:11:00)
Other mistake: When Cassie runs from Evan's house, she trips over a wire, setting off an alarm. The wire is visible still strung in the shot after that. Evan comes running and simply walks right trough the same wire without jumping over it. (00:54:00 - 00:55:00)