The hell you dont... after you have been permenatly banned they flag your mac address so you if was to try a new CID kiss it good bye instantly... And i have lost a total of 4 CID before finally figuring out the right process to mod ghost no ban! Dont spoof your id with sen enable! make sure you actually down grade your cfw and do it that way... just look up how to change mac address youtube...

UPDATE: And i have used every tool in the world to not get banned but the only REAL working anti ban i have seen work is the one on RawDogs and ImSoCool tool for $20.00... Its the only modding tool i have ever bought but it was well worth the money... plus its for every COD and constantly updated