Here's something I was working on and forgot about for several years. Since some people have been asking if there are co-op maps that don't have the Blight, I figured I might as well give out what I have. Included are 4 mission files, custom maps for the missions that don't use vanilla terrain files, a modified techtree (basically gating off certain techs until later missions, and completely removing Recreation Facilities/Forums since they're worthless anyways), and briefing/story files for each mission (no reading ahead!). Have fun!
Host "Midas" type games if you want to play these missions. They're also fully functional in single-player mode, available through the debug menu, but probably not beatable since they're not balanced for solo play.
The story so far:
Basically, the Blight never happened. The Eden/Plymouth split still took place, but the two colonies remained in contact with each other. Eden still pursued their terraforming project in secret, but the project became public knowledge before testing had begun due to a leak. Shortly after this occurred, Chairman Nguyen was found dead in his lab, with all terraforming research data destroyed. Eden/Plymouth continued to grow and expand, but their relationship was built on distrust and paranoia, and each colony evolved into oppressive regimes at constant war with one another. You and up to 3 other players are the commanders for a small group of rebels, the eponymous Exiles, fighting back. Your only hope at survival is staying hidden, playing your enemies against each other, and performing hit-and-run strikes wherever possible. The fight for your freedom won't be easy. Are you up to the task?
9/30/2020 Update: New version released containing mission 5, updated versions of missions 1-4, and updated briefing/map files.
10/02/2020 Update: Fixed some multiplayer-only bugs in mission 1 and 3 introduced while refactoring. That's what I get for only testing a multiplayer game through the single player debug menu...
10/29/2020 Update: Improvements to mission 5, plus OP2 1.4 incompatibility fixes.
12/13/2020 Update: Yet more OP2 1.4 feature creep incompatibility fixes.