Right now we have leaders for both regiments, but no role selection for the one person who leads the team.
Would be good to have some clarity in the public fights as to who is in charge. As well as for organized play, a recognizable role for the leader so that he may be easily found on the battlefield.

This could also be a good opportunity to test the horses. Include a horse for the Majors, Colonels and the Brigadier General to allow them to communicate and organize more easily.
If horses do come in, another good role would be that of a messenger for the Brigadier General. I don't know what kind of rank would usually fulfill this role on the battlefield, but I'm sure you guys do!