It doesn't matter. They will never believe you. I've been in so many games with DDD and Gunner(Dwayne) where they are convinced they were hacking. I try to convince them otherwise, but their mind is already made up.
I've asked "So it's not possible to be good in this game without hacking?"
Their usual response is "Yeah, it is, but that's BS!"

I guess our only hope is that the Wii U will not be so easily hacked (fingers crossed) and then when you whoop dat ass they will have no excuses. I'm starting to think it's a marketing ploy to let the last good FPS on the Wii be so filled with hackers that when the Wii U comes out people will rush out to get it just to get away from all the hacking.

With all the hacking going on and not even trying to update the lobbies, it's like they just gave up on the Wii.