The turbo controllers work fine on Cod4, but they did block them on Waw after a while. I have a horipad ps3 turbo controller. The idea of the turbo controller is to make single shot weapons (gewher, svt, pistols in WaW G3, m14, m16 in Cod4) fully automatic. So if I go play Cod4 right now, I can use the G3 like a mp5, just hold down R1 and through the clip it goes. Same thing with a pistol, it shoots through a clip in like 2-3 seconds. Using this controller with fully auto guns doesn't do anything, except slow it down slightly. You can buy horipad's off ebay for like $35-$40 if you want one.