Fire Fly

Use those teleporters. They don't cost any fuel. Shoot away like mad, you have infinite fire power. Leave all the heavily defended sectors alone till last. On the in-between sections, take your time and you'll be able to hit the correct switch every time. When you start a sector, pause the game and work out the quickest route around the maze. Don't waste time flying into things, and they may well save your life instead of taking it. Don't forget that if you go off the bottom of a sector, you'll come out at the top.