Is this game so fucked up that you can't restore your campaign progress from an earlier point? I made the mistake of running over the end of map (i.e. the final battle) trigger before I capped something on the map so now I have a finished sector with a wasted (uncapped) resource and I can't find anything in the UI that will let me replay that day.
Part of the reason why it got boring is because enemies stood still and waited to be pulled like a WoW raid. After I learned enemies stopped chasing I decided to just use the sniper rifles.