The Manufacture UI was limited until 34.2 XCE, so we had limited categories before and this caused the problems you got. After XCE 34.2 goes leave and at out 99.4 patch, you will have all handled. 99.4 will have totally new things as manufacture and it's UI. I can say that, the mod will evolve with very new things as we got with 34.2.
AI is not cheating at Xenonauts, it's their stats and invasion speed. This mod is created for veteran difficulty so everything is %100 at veteran. Normal and easy are easier. Genius is a bit harder. As the mod created to be hard, we don't need more harder difficulties but people can need more eaiser one so i choose to stay at veteran. I don't know that, soldier training is scaling at difficult, it's charon's specialty.