Tier missions, planet surface

Could you think about the tier missions? These levels could take place on the planet’s surface as in CI5. It would replace the story mode and give a good reason to play. The missions on the surface of the planets were the best, it would be great if they were also in this game. (sorry for google translator)


Already ſuggeſted.
Except for this part, which I don’t underſtand:

I mean additional missions, after getting a new tier, not assigned to any planets.