My earliest desire for real AI was so it could control my dumb fucking harvester in C&C95.

I seem to remember the fatal flaw with harvester AI was that once a harvester was returning to the drop-off building, it would "claim" it, and so any other harvesters would just do a dance around the building until the the first harvester arrived. As a result, a harvester that was further away could block closer trucks if it just happened to fill sooner.