I don't really think it's about score per say, it's more about not dieing. People don't want to die, especially flying 5 minutes to get alt. When you get jumped by 3 or 4 guys at one time, you decide to fly planes that can escape faster to not get jumped. Unfortunately, a lot of good players chose these planes in order to make it easier to escape. The rest of them don't even know ACM enough to be able to reverse a plane on their 6. Muchless 3. Many dont want to challenge themselves. ACM is like a Jedi art form. You have to really want to learn it. They simply just don't get enough kills per sortie for them to have a good rank because they aren't aggressive enough.