Alliance are a serie of different mods. On the Star Wars GC, you can play the civil war Empire vs Rebel era + Black Sun and soon the Republic and CIS.
I have designed a new style of campaign by stages, now when you finish the tactical events from one era, you have the option from jump to other era, when you make it, a new galactic conquest is loaded, probably it will be a good way for avoid the global error.
The other feature only works at this new GC and on the GC divided by era, it lets to disable the limits which prevent you from to build some units before you reach a story event.
Very nice!