According to this, Infinity Ward reckons that 1.3 million people play Call of Duty 4 on Live every day.
"That's just 360," said producer Mark Rubin. :There's even more on the other platforms [PS3 and PC], but we just don't have the same numbering system. Overall, even without the other consoles, we are beating the competition. PS3 numbers are monstrously huge. No other game has come close, either online current, or total unique users in a day."
Rubin said the level of play had been hitting figures at this level ""consistently for the past two-to-three months, Monday through Sunday. It's crazy."
CoD4 was confirmed as the biggest selling game of 2007 in January.