Hard level. Don't read further if you don't want hints.
My initial response to the opening is to try and save all of the existing structures under attack. But this is almost impossible since the enemy raiders and tanks etc are in your base.
My second response is to liquidate (sell) everything, take the cash and start over since you have a dominion. However this fails the mission.
My final response was to liquidate most of the base, save a couple of structures that I could use to build a new base. Most important is that I could arrange my buildings so that defense was a little easier.
Like other levels the enemy keeps coming at you so it's difficult to build up a huge army before launching a counter attack. Because the galaxite is not very plentiful around the base my army is mainly composed of...
That's enough for now unless someone wants more info.
