To beat the Noworthy Squadron, you have to keep in mind that they are fast and can turn on a dime. Your plane is slower and can't turn as tight.
So, when an ME262 jet is in view, slow your plane down and turn in his direction. At slower speeds, you can make tighter turns and keep him in your sights. Once in your sights, start shooting.
Of course, at the slower speeds you take more hits and damage, so be ready to repair (press 1) yourself 3 or 4 times before you down all of the German jets.
Hope this helps some you out there.