Dain asked me to help him with the French ranks. I'm not a specialist in making fancy troop trees, but I'll do my best.
Marie-Louise - Homme de Troupe (instead of 'soldat')
- Caporal - Sergent - Sergent-Major
Possibly followed by this ranks:
Adjutant-sous-Officier (Senior NCO) -
Porte-Aigle ('Eagle-bearer' - actually there were the 1e, 2e and 3e P.-A. carrying the flag) -
Sous-Lieutenant and
Lieutenant (Company officers).
(OK, that would be a whole bunch of officers running around the battlefield, but at least the Porte-Aigles would be a picturesque addition to the regular troops.)
IMO the terms
vielle culotte - vrai Bougre - briscard could very well used for non sous-officiers.
A Line battalion consisted of 6 companies: 4 Fusilier, 1 Voltingeur (light infantry) and 1 Grenadier company.
Accordingly the Light Infantry battalions: 4 Chasseur, 1 Voltingeur and 1 Carabinier company.
So the troop trees for soldiers of
Ligne and
Légère units could be more or less the same except for the different denotations.
I'm not quite sure about the term 'Marie-Louise'. I know that it was used for the poorly trained and equipped recruits of the years 1813-15, but I can't tell if it was used before that time.
BTW: Found something concerning the Marie-Louises:
Hope this info is of use for you.
EDIT:
If you'll need more uniform plates, let me know.