Come to think of it, maybe those clans ARENT hacking, maybe they just outplay you... Don't take that offensively but did you ever think that?

You may not know this but, Treyarch did a great job rewriting the codes so that hackers cannot get it to work.

And you might say "There are still hackers out there" yes but you can only bump into 1-5 hackers and it is called resetting your Wii if you suspect something fishy;)