How would it fare with both engines?Ziller crashed the Go229V1 on its 3rd test flight, fatally, so this 'mock dogfight' would have had too have taken place during the first test flight (massively unlikely) or the second (highly unlikely)
The Go229 would not have lasted long on one engine, or in combat with a Vampire or a P-80.
I know people say flying wing designs need fly by wire tech but I've seen radio controlled flying wing designs on Youtube that perform beautifully, they don't have fly by wire so what am I missing here?