Variants for the General/Captain with different weapons
Grand Master: Lord for Knight based armies
Commander: Naval Horde focused around swashbucklers, cannons and handgunners.
Engineer Lord/Hero

Add traits to the lords to allow them to buff a select type of troops
General (State troops)
Huntsman General: Forest based Irregulars
Arch Lector: Faith based units and the militia forces
Grand Master: Knights of all kinds

I also plan to add a faith feature that allows you to dedicate lords/characters to a certain diety.