How was the rank of Chezhan troops named in Shang Dynasty?

The military post of the Chezhan troops is named after the horses on the chariot. Officially Maya, there are Ma Xiaochen, clan horses and garrison horses. There is a saying in Oracle Bone Inscriptions that "there are about 300 people in the middle of a charger", which is about the divination of cavalry who control chariots. It can be seen that the chariots are also formed in right, middle and left formations, and the shooters on the chariots carry more loads and shoot more.