
Originally Posted by
Don_Diego
Do you have a source for there being more than 1 recorded Ala of Batavians? There was an Ala I Batavorum Miliaria stationed in Dacia in Imperial times, no other Batavian cavalry wing I am aware of?
The other units are listed as Cohors Batavorum (there was 8 of them in the Batavian rebellion so a cap of 8 units for them)
"They were a warlike people, skilled horsemen, boatmen and swimmers. They were therefore excellent soldier-material. In return for the unusual privilege of exemption from tributum (direct taxes on land and heads that most peregrini were subject to), they supplied a disproportionate number of recruits to the Julio-Claudian auxilia: one ala and 8 cohortes. They also provided most of the emperor Augustus' elite regiment of German Bodyguards (Germani corpore custodes), which continued in existence until AD 68" - Garrison Life at Vindolanda, Birley 2002
(Also a 9th Cohort stationed at Hadriens wall, so you get 1 miliara batavian unit late game)
The description just states the Batavians also served in the Emperor's bodyguards, and these units are not capped. They are called "Equites Singulares Augusti" as you say. That is a different unit to the one cavalry auxiliary regiment... If you look closely at the unit in game now, there is a mix of "Roman" praetorians and more Germanic looking guards. A little bonus i put in.
As for the reformed auxiliaries arriving in Marian reforms in DEI, that was a gameplay decision over historical decision as it takes a long time in the GC to reach imperial reforms...