Shepherd

The is a

Shepherd MkI
Originally designed as a cargo drone used to move cargo between space stations, this repurposed drone is programmed to collect nearby resources and return them to the ship.

Shepherd MkII
Installing a more powerful tractor beam array allows this drone to collect more material before returning to the ship. An extra large powercore is required for the upgraded attachment, which in turn also boosts drone speed.

Shepherd MkIII
Pushing the limits of physics, the Shepherd MkIII contains an experimental fusion drive, replacing the standard power core. The extreme power levels are utilised with the most powerful tractor beam ever installed in a drone platform.