GameStop's VP of Marketing Tony Bartel didn't back down when asked about his claim last August that Call of Duty: Modern Warfare 2 could be the highest selling game ever.

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Speaking recently with IGN, Bartel again referred to the title's strong pre-sales that will make it a historic moment for the Texas-based retail company."This will absolutely be the highest selling game in GameStop history," he noted. "We know that because our pre-orders are so strong on this game."Bartel gave some perspective on the pre-order sales, too, saying the demand at its store alone is larger than the initial worldwide sales of Call of Duty: World at War "Just to put it in perspective, if you took all the Call of Duty: World at War titles that were sold in the first month worldwide, we have more pre-orders than that number just for GameStop this time around," he added.Wedbush Morgan Securities analyst Michael Pachter recently stated Activision could move as many as 10 million copies of the title in Q4.