Much of that time was the "incoming enemy transport" level which held me up for a year or two until I finally gave in and looked online for the solution.
While looking for help on how to complete that mission I saw some spoilers and discovered you can recycle units.
Discovering you can recycle units meant I found out how you get the drivers to survive long enough to get promoted. It would have helped if that was in the tutorial.
To complete the campaign I also had to work out:
- stop trying to use commanders. They are in the employ of the enemy and their prime purpose is to get their troops under the enemy's towers. They are useless, no, worse than useless.
- give up using armed units and use artillery, sensors and builders to win the game. A creeping wall of sensors and artillery + air defence is unstoppable.
- flying vehicles are useless until right toward the end of the campaign when the Scourge is available.
My method for cheating:
- saving the game just before a mission is due to end, then playing ahead to see what the next mission needs at the start, then re-load the saved game and creating that starting environment for the next mission. Certainly finish research and upgrade units and build the maximum number of research & factories.
- on away missions, de-construct as much of the buildings as you can to get the credits back.
Also, I sense a change happened in the most recent version which allowed me to continue the campaign. One good change seems to be that obsolete equipment is no longer offered to be built.
As for the campaign end-movie - is that it?



