I have played this game since it has come out. But over the last month I have seen more multiplayer online cheating occuring. Today the username is BoX255 and when I looked around and googled him there were many videos on youtube of him/her cheating in halo 2 vista. There seems to be a memory patcher that is floating around that allows you to have unlimited shield/ammo fast speed. If this is not fixed soon H2 vista multiplayer will suck for everyone.