Well it doesn't really improve the gameplay, however the controls work surprisingly well. However in the end I went back to Wiimote/Nunchuck, especially online.
Thanks...I was also wondering about those cheapie guns that have just a pistol ,and you hold the numchuck in your other hand?....thought those might be ok?
i don't own COD, but i bought the the wiizapper for the LCT game, which i like much.
i also like the all-in-one assembly, nunchuck to move, remote's b-button to fire... dunno how this compares to COD