Modern Warfare 2 has sold 1.23m copies in the UK in one day, smashing the previous record set by Grand Theft Auto IV (631,000 units).
That performance made Activision around Ł47m, whereas Rockstar made only Ł27.2m.
"These first day sales figures are astonishing and clear evidence that videogames are now mainstream in the UK," said Michael Rawlinson, boss of data collector ELSPA/GfK-ChartTrack.
Modern Warfare 2 was released yesterday, on Tuesday 10th November. Our review is clear and visible to all.