This is the million-dollar question.
The PS3 PKG version of Modern Warfare 2 refers to the game's package file, which contains the game's data and can be installed on the PS3 console. This version of the game was released in 2009 and features a range of improvements over its predecessors, including enhanced graphics and a more streamlined multiplayer experience. Call Of Duty Modern Warfare 2 Ps3 Pkg