I'm sure it's been suggested before! But I'll talk again!
Need a coop! That more than one player can control the same base and the same ship doing different things!
That a player can be taking care of the first stage while the second is taking care of the second and carrying in orbit or both doing things on the same ship! And in a space mission on some planet each one controls a character and does different things, but always free to do anything!
The game is good today! But with coop of form officially without lags and problems would be perfect! Imagine people traveling through space with up to 4 friends can do everything!
I realize that the problem is in the matter of game time! But you have to have a solution to have a good experience with friends! It could be a DLC paid! But it has to be perfect in the coop! Would be ideal!