The images have been attributed to this user on the site The Tech Game. The images’ provenance is unknown, though German language menu options are visible in some shots.
The 16 maps all conform to the names listed on the Modern Warfare wiki. Eight of them conform to the list of multiplayer maps first leaked in May and reported by Kotaku, though it’s likely names on that list have since been changed.
This week it was reported that someone at a shipping warehouse in California stole one of the two discs for the PC version of Modern Warfare 3 and pirated its contents online. The menu options in these shots, taken of someone’s television screen, show PS3 controls, so this is something different.
We’ve contacted an Activision rep to ask if these are legit.
MW3 Maps Leaked [Modern Prestige. Thanks Dan Borenstein]