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.
These are all the Star Wars Frigates playing with the Fel Empire and Galactic Alliance faction in the Alliance Rebellion where these two factions work as one single faction because they are allies. You can find them in the Alliance Encyclopedia Firefoxccmods.com , check the chapters if you want check one by one the different units and in battle.