Ford Brody is a very capable guy who can fight in hand to hand combat or with his gun. Either way he is ready for the average opponent. That being said, he isn’t quite ready to go after someone like Vegeta. Just think about it for a moment, how do you hope to beat someone like Vegeta? Vegeta has enough power to wipe out all living things in the solar system. That kind of power doesn’t come cheap nor can it be stopped so easily. This is the end of the road for Ford. Vegeta wins.