I have played this mod for a while now and while it is hands down as realistic as you can get concerning multiplayer, I've noticed things in the campaign which I believe could be improved/fixed easily enough.
1. Spain seems to support Napoleon regularly throughout his campaigns after say 1807 when Spain has beefed up their armies to the point of being expansionist, none of France's other allies seem to support them and France already has ally units in their recruitment pool. Historically napoleon ordered Spain to send a division under general Romana to support him in Denmark but after Spain turned on him the British helped Romana and his division escape Denmark and return to Spain to fight against French.
I think Spain in game should be an ally but not friendly with France(sort of forced upon them), and also change their campaign_personalities table so they don't support him in campaigns or take provinces like ex.Transylvania for themselves and maybe even eventually declare war on France after they steamroll Austria and Prussia, forcing France to invade the Peninsula(you see where I'm going with this) to make a sort of peninsular war(make Madrid almost impossible for France to hold public order wise and the other Spanish provinces though to hold onto too, anyways main problem is spain sending army after army to invade with napoleon in game(has to be fixed imho)
2. Britain in game does eventually land amphibious armies but it always seems to be northern France(Brittany mainly and maybe Caen), I realize you have a mission directing them to take Hannover and Balearic Islands but they ever only once went for Hannover and never go for Balearic Islands, but almost always seems to want to invade Brittany, again could be improved by putting more concern in behavior with completing mission assigned.
3. Prussia sometimes around 1807 (if haven't gotten into war with France already) usually likes to go after Austria which then crumbles from France and Prussian might which for that time period is inaccurate as they were allies always in coalitions against France.
4. Napoleon actually does what he's suppose to do by eventually capturing Vienna(sometimes on the rare occasion France doesn't expand and stops at taking Tyrol, Hessen and maybe Venice) but It seems he can hold on to Factions capitals public order wise so easily, I think coalition capitals should be fiercely opposing France's occupation not have like 22 and say 19 public order for high and low classes respectively, some provinces are tough to hold onto like Hessen etc which I don't understand.
anyways there's some of my pointers but absolutely love the work you guys have put into this fantastic mod, keep up the tremendous work!