How is VGChartz going to keep track of Warhawk sales?

[Dolla Dolla]

I think, due to this generation, there may eventually be a way to track online purchases for DLC. This is the first generation where it actually matters. But I sincerely doubt we'll be able to track them. ioi doesn't track VC downloads, he doesn't track XBLA downloads, and he won't track PSN downloads. You will have to rely on Sony to release numbers to quench your thirst of PSN #s.

(As an example, you do not see any numbers for Calling All Cars which I hear is a fantastic multiplayer game only available on the PSN, and probably one of the best selling. Also, no numbers for Tekken 5).