Preorders of Battlefield 3 are "roughly comparable" to those of Call of Duty: Black Ops, according to analysts from Cowen & Company, reports GamesIndustry.biz (registration required) (thanks James via Bf3Blog). This seems a good omen for DICE's military shooter sequel, as Black Ops has sold more than 20 million units worldwide. Cowen & Company currently estimates Battlefield 3 will sell approximately 11 million units.