We're working on the Missions!
Here is an early look at the Hadley's Hope Mission cutscene for the Hopper. In this mission the pilot has to highjack the Hopper and pilot it to the dock on the Cruzer. The Hopper transports Bionite to the Cruzer for shipment back to Earth or other bases throughout the solar system.
When we open up the MMO version of the Game, the Cruzer will be needed to transport troops/assets between planets.