Is there anything to unlock inside the game ?

Hi just wanted to know if there's any special feature you can unlock in game , like having more nations for the campaign (the alliance one especially)

bump lol

why would there be anything unlockable?

its not like RTW where u get 5 nations u can play initially and once u defeat someone u can play as them. its like etw. set nations playable. although expect a mod to unlock the other factions fairly soon if the modders can do their godly best

Not by beating the campaign no. You can unlock Napoleons campaings/battles by playing through them

There should be mods out fairly soon that add in more factions to play