Like ordinary people, they all served from ordinary soldiers. As for the arm, it's not your choice. You can't expect to be given any rank just because you are a college graduate. It is out of the question. When college students join the army, they only say that there are some advantages in resettlement after discharge, but the welfare is not very good. Not much worse than the average person, let alone go to the military to take an examination of any military school. Most people don't have this opportunity. In addition to the relatives of leading cadres at the corps level, it will cost hundreds of thousands, which may not work.
So now college graduates should be cautious about joining the army. If they go to the army with the mentality of taking the military school exam, they should advise the students not to go.
You'd better go to that place. Don't regret wasting your time after joining the army.