I just made a game with the Burgundians against a Sicilian AI in DM . My idea was to get the 21 hand cannoneers challenge. Funny enough I got the Sicilians as a random enemy.
Anyway After winning the game I got those 4 achievements:
The English Justinian; Haute Culture; The Good, the Bold, the Fearless, these three should be for completing the new campaings. Pretty sure shouldnt work like that. I also got Burgundian victory what should have been the only one I get.