I noticed most French Units were using models for year 1812: I replaced all of them with 1813-1814 matching unit type models.
As a result, French forces are now weeker: Cohesion, Strength and Combat Efficiency max values per unit beeing reduced.
Anyway guess we have achived a superior historical accuracy!
Down here a comparison of Ney III Corps at campaign start, how it looks in the default and modded Campaign respectively:

Original

Modded
In particular note the 4th, in order, division in the Corps roster: Cohesion is clearly reduced in the modded version, while the Skirmish special ability is gone!
Soon the relative play-modd will be available.......
Stay tuned!