USA General?

has anyone ever heard of this? my x brother in law served during the vietnam war, he was drafted right out oh high school. Well he just pes away and his children went to va to get his his death benfits for funeral. They were told that he was a General , RN, Lpn, social worker, and a chaplin. He served for 4 years and was home married with a child by the time he 24. I tried to tell my nephew there had to some sort of mistake, but he says the VA says he must have done something very big and signficant to earn the rank of General but they wont say what. I dont want to argue the point with my nephew right at this time cause his Dad just ped away. But him and his brother and sister believe this to be true, even their Mother has told them it is a mistake. They say it is on is discharge papers. Any veterns out there that can explain how something like this could happen? I dont care what the papers say this man was no General.