"I thought it would be a simple job. "Fly your cargo from A to B, gain some resources, and be on your way" they said.
Unfortunatelly resources are scarce, so no - press the button and let the autopilot calculate the route and swoosh! off we go! - while I grab a beer and get a few cozy hours in the freezer... and to make things worse, pirates are patrolling my route. Greedy bastards.
My only "weapon" might be no heavy rocket launcher or massive laser turret, but one has to live with what he has, and so the gravity field generator comes in pretty handy! With it I'm not just restricted to the use of planets and asteroids to change my route, but can deactivate their gravity and even create my own gravity fields to alter my course – and the course of pirates coming dangerously close.