Rome vs Han essay- want get some opinions

[Peroni]

So was he a Syrian or a Syrian serving in a Batavian cohort?
His archery skills sound like a Syrian, maybe he learnt how to swim from the Batavi?

As far as we know Robert he was Syrian serving in a "Batavian" cohort.

It could refer to COH II M Eq , or Coh III M Eq. or even possibly Coh VIIII M.

Or, it could also mean the Equites Singulari Augusti. But yes, by that time, the levies were not just coming from the Cohorts homelands.

Regards,