there has been ban, judging from IW website, so far they ban over 2.5k player all over the world.

got one game i play, there is this player  got 60 kill and 6 death ratio in team deathmatch, nobody say he is cheating for over 5 games... but most of his killcam are well.. legit, even i am in forest camping and blending my sniper camo isnt working, he still can see me and snipe me and no enemy UAV at the time and i didnt fire my gun, so no radar detected.

maybe he is too pro.. lol

Vince Zampella was formerly the Chief Executive Officer at videogame developer Infinity Ward, Inc., overseeing creative development and production for the blockbuster Call of Duty franchise. Previously, he was a producer on such titles as Medal of Honor: Allied Assault, Vigilance, Skies, Baldies, and NBA Jam. Zampella worked at Gametek, Atari, Panasonic/Ripcord, Sega, and 2015 before co-founding Infinity Ward.

In March of 2010, Zampella was unexpectedly let go from Infinity Ward. Former President/Game Director/CCO/CTO Jason West was also let go on the same day. SEC filings by parent company Activision on the firing of the two studio heads described breaches of contract and insubordination. Particularly given that Infinity Ward's last project was the mega-blockbuster Call of Duty: Modern Warfare 2, most indications as to the reason Zampella and West were let go point to clashes of interest over control of the Call of Duty franchise and Infinity Ward's future outlook.