One of my biggest screw up in campaigns?
I was too used to age of wonders 3's campaigns and tried to rush the enemies in campaign fast. It took me three days of bloody headbutting the pinned down fleets on Arcea campaign. Then I eventually realized that I was suiciding my frigates + escorts against a late game style of fleet. I woke up to that and backed off to sit down and research the tree bit.
Finished the human campaign, and tutorial, and finally the Snathi.
It was interesting. But who the hell is Arnon robot thingie that kept snathi imprisoned for like forever? Just.. what is they. Who made those robots. I"m curious.