Other mistake: During the drill performance towards the end, the cadets' rifles bounce around like rubber, but you can hear the sounds of a hand hitting a real weapon from time to time.
Other mistake: As Major Payne is sitting at the train station, a CSX freight train goes by the station. He then looks down at the gift Tiger gave him and he then looks up at the end of a Amtrak passenger train on the same tracks.
Answer: Madison is not a military academy. It is a boarding school and Major Payne has been put in charge of their JROTC program. It is, however unlikely that those cadets, or the blind cadet at the end of the film, would be admitted into a JROTC program. The Code of Federal Regulations states that the JROTC program is designed for "physically fit" students. Tiger is also much too young to be allowed to participate, you must be in at least the 7th grade to participate. Madison is apparently making exceptions to allow basically anyone that wants to participate and that would not be allowed in real life.
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