I am having a heck of a time trying to complete the Hydian Way Blockade Space mission. I have all level five upgrades, and can get most of the mission done (only 3/4 heavy fighters), but I simply cannot kill the mine layer in time. I usually get one engine and that's it. I'm launching five missiles at a time, and I have the power gen on max firepower, blasting away at the yellow circles.
Is there some special trick to this?