This has been covered many times..... search the boards.
If you don't find your answer regarding game setup then call the main offices. They know the why and what for of the game setup. <S>
Ah yes, the usual "HTC are always right, got to hell" answer.
It is massively frustrating. Particularly if you live in GMT +13 and you have to be super organised to attend a squad night and you spend 4 hours watching an arena that is 1 or 2 over the arena cap and never get to the point where you can join. I've heard all the rationales behind arena caps over and over and they still make no sense, nor does the "Your whole squad should move to the other arena!" standard answer.
I like to fly with my squad. Given that they haven't thrown me out yet I'm presumably still welcome. I don't fly all that often and when I do I prefer to hook up with squaddies, not fly in another arena for a different country which effectively precludes me hooking up with them the next day.
Yes, I am aware that my opinion is invalid and that my individual value as a customer is negligible in the scheme of things, but, it's still incredibly frustrating to be forced out of spending time with guys who've become friends over the years because of an arbitrary game policy that may or may not be governed by game play or technical game issues.