When you are an auto soldier, you can't meet it. Every year, conscription units in various places are formulated by the army according to needs. Autobots belong to technical arms and have a long service time. Some autobots become volunteers and professional sergeants, and then they become professional soldiers, who can work until they retire at the age of 55. Therefore, it is rare to recruit autobots in large numbers. Most troops choose some recruits to train and become autobots. In addition, at present, the army recruits more students and college graduates. Some of these students major in machinery or automobiles, and they are more likely to become vehicle drivers in the army, such as car drivers, armored vehicle tank drivers and other military special vehicle drivers.