Activision confirms Censorship for Modern Warfare 2 in Russia
Earlier in the week, we heard that the Russian Government was recalling the highly-anticipated shooter Modern Warfare 2 from its shelves due to the notorious ‘No Russian’ mission. Activision was quick to deny that this wasn’t the console versions, as console versions of the game were never released in Russia, and that the PC version was censored only because of the country’s lack of a game ratings system
While speaking to IGN, an Activision spokesperson said: “Reports that Call of Duty: Modern Warfare 2 has been banned in Russia are erroneous.” “Activision only released a PC version of the game in Russia which went on sale on Tuesday, Nov. 10.”
"Other countries have formal ratings boards that we regularly work with. However, Russia does not have a formal ratings entity. As a result, we chose to block the scene after seeking the advice of local counsel,"

Source: http://au.ps3.ign.com/articles/104/1046155p1.html