Hmmm lets see.....
killzone 2 was front loaded as well and managed to crawl to 2m(without any heavy bundles) in less than a year and was released in non holidays season and now getting a sales boost cause of GH release....so if KZ2 managed to do all that with no bundle etc why wont Uncharted 2 do more than 2m? especially releasing in holidays with a potential bundle comming and sony's finally marketing their products so this might aswell. There are also factors why R2 didn't sell as well as the first.
1.It released at same day as COD WAW
2.poor marketing.
3.ps3 was god dang expensive and the competition had a price drop which lured more ppl buying their system and game.







