Just the aces and a couple of bug fixes I'm afraid. The aces are tough. Questions like:
How to handle non-historical events like victories and death? Answer: there is a historical aces file and a separate aces file for each campaign. Events from the former are interleaved with events from the latter.
How to handle situations where you rise to squadron command in a squadron already commanded by an ace? Answer: You transefer out. Sorry, but you can't take over Jasta 11 from MvR.