COD 4 Pc sold less than 2 million units? Piracy is to blame?

[averyblund]

One thing I find bizarre between the STALKER and COD4 numbers is the emphasis on multiplayer and thus usefulness of piracy. STALKER is very much a single player game and thus makes an easy torrent. On the other hand COD4 while having a great single player campaign, is certainly better known for its online components.

On the other hand I don't see why Activision wouldn't report these numbers when they are trying to show off their sales if the were not accurate.