Call of Duty: Black Ops glitches mar launch success
Call of Duty: Black Ops lag issues strike PC users
Call of Duty: Black Ops has rocketed to success with more than 5 million people registered to play it online, according to Activision insiders.
The Treyarch Studio has acknowledged the problem, with multiplayer design director David Vonderhaar Tweeting: "I don't have any intel at this time. I am not in the office but I know they know about it."