I am getting close to finishing the free version of NightFlight.
The original 14 missions has been upped to 27, and split into 4 campaigns.
Attack of the Xercs
8 missions taking place over earth
Earth strikes back
8 missions taking place over their mothership
3 mixed missions ( the free version )
Battle on the moon
8 missions taking place on the moon
Apart from that, the interface has been completely revamped.
In stead of menus, everything is now controlled from inside the ESA88 spacecraft. Check out these interfaces.