I find it hard to comment about the Wars in general, since I know so little about the subject. A brief look at Wikipedia indicated that these were essentially Militia armies, with the better troops called 'experienced' militia, which would be about the same as Reserve infantry.
Considering the scenario in particular, there are a few things I think could be clarified.
It should be clearer the Red & Yellow are on the same side.
The setup seems very close
Command for both sides to be set.
Are the Guerilla rules in effect, and for which side? (and I recommend not)
Battle place and date.. is this the battle?
en.wikipedia.org/wiki/Vargas_Swamp_Battle
Heavy Cavalry??? no Lancers?