As impressive as Er has been doing, I don't think she is anywhere close to get the naval battle to work.
The custom battle works, but not on campaign.

To answer your question, if I may, I stated a new model for the entry level infantry, I did not mean a brand new model created just for Sarmatian, it could be an existing model but just not another Militia Hoplite or Warband.

Er voted NO
and have not heard back from Jenn.