Indeed. Not only there are 3 different types of infantry (well actually 2 and guard units of the 2 types, but let's say 3) but also in battle formations are a lot more flexible : from the pure line to the mixed order to batallon up to divisional columns, the variation is huge.
The cav component of the game would be capital, if done well it would set the tone for the combined arms ultimate orgasm that a napoleonic wargame can be : light cavalry for scouting, probing, pursuing and occasional charging. Heavy cavalry for shock assault, dragons with the ability to dismount as well... There is a massive amount of fun to be had.