Four fractures to dust. One base, hidden. Fly.
Every rock in the belt answers to four classes. Hit a Class IV colossus and it breaks into boulders, boulders into shards, shards into cores. Only a core detonates. Anything larger just makes more targets, so keep shooting.
Alien fighters run patrol arcs around something they do not want found. Every rock you crack and every fighter you burn tightens your signal lock. At full lock the cloak drops and the base is yours to break.
Fly through drifting canisters to raise thrust, uprate the cannon, or patch the hull. Patches are welds, not miracles: they give back a slice of what you lost, never the whole ship.
Building the belt.