Subject to the holders of graphics cards without support DX11 . You can run the game on older cards , but does not guarantee smooth operation . With me on the equipment Geforce GTS 250 , Athlon II x2 250 and "recommended" 6GB ram , so nothing special can draw from three fpsy However, I hope that the way will be useful and other hardware configurations you can play . So go to work :
1 , Download and install this file http://msdn.microsoft.com/en-us/windows/desktop/hh852363.aspx
2 After installation, enter C : \ Windows \ System32 and fire up your dxcpl.exe
3 In the window that appears, click on "Edit list" and select the path to trigger the game "C: \ ... \ iw6sp64_ship.exe "
4 The device settings (below) set the "Feature level limit " on 11_0 and 11_1 and enable the option " Force WRAP "
5 Once approved, you can safely run the game in DX10
The download is for Windows 8 , but it also works on Windows 7 , and perhaps it is also available in Polish, which I did not check .
As I wrote above, I do not know if this will enable a smooth game , but it's worth a try.