again the ranking system in halo 2 was not broken it leveled people up and down in an easy and predictable way it worked perfectly. cheaters found a way to cheat the system and hence get high ranks, however the ranking system is only there to provide a method of ranking players on performance its not there to detect cheats. what about that dont you understand? team A is modding and beats team B, the system recognizes team A has won and awards EXP thats all it does.