You will need to find an Arwing. Make sure that the other person doesn't see you. Hop onto the nose as they're hopping in. Use your blaster and damage it. The pilot will see you or notice it shaking, hop out, maybe fall out, and see you. Use a gun to kill him and then you can hop in. Or you can skip the kill him part if you're too close to a wall or the edge. You can then shake him off and voila. Welcome to your new Arwing.