Hi Derbius, the difficulty setting scales with the mission/progress through the campaign so this will kind of depend on whether you started the campaign with the tutorial (Dolos Minerva) or with Vanguard/Kir'ko/Dvar 01. The tutorial (Dolow Minerva) always plays on very easy I think, not completely sure, and the first missions have the AI scale as follows:
- Easy difficulty has Very Easy AI
- Advanced difficulty has Easy AI
- Expert difficulty has Normal AI
- Easy difficulty has Easy AI
- Advanced difficulty has Normal AI
- Expert difficulty has Hard AI