Hi, it's possible to get achivments:
Ready for Bigger Challenges,
Commander of Worlds,
It's achivments for campagain levels. I'm done story mode on casual but i don't get the achivments
You need to finish the missions on normal / hard to get extra achievements. For each mission there are 3 achievements casual / normal / hard. And if there are any hidden I don't know, didn't finish the story yet.