This plan will never work. If they somehow manage to find out where Julian has been imprisoned, they will have a hard time trying to figure out how to rescue him, and even if they manage that, they will have nowhere to go since the Auberwood would be still crawling with Reds (far more so if their desperate plan succeeds somehow). Perhaps they rely on Julian's magic, but even he is not powerful enough to defeat an entire army all by himself along with his little group of rogues.
I wonder what the Commodore is plotting. He certainly seems to be a shady character, and probably one which we remain unsure about until his moment comes along.