 FACT: Generally speaking, Roman generals did not ride with the  cavalry let alone involve themselves in physical combat. The number  of men shown on the battle field in Germania appeared to be the size  of cohort ( 1/10th of a Legion ) which would have been commanded by  several Centurions, and Optios. A Legion, in turn was commanded by a  Legatus, and more than one Legion, making an Army was commanded by a  general. Generals also had their own Praetorian guard which seemed  conspicuously absent in the case of Maximus.