Before you buy me this game I had read all the comments rather negative speaking and other crashes, but here I have none of that and happily. First the scenario is well-crafted and catchy, it has diverse and long missions (hard to get out of the game). The achievement is "clean", I mean that the game displays good graphics, attention to the settings if it is not terrible; it consumes a lot of memory, 8 GB is mounted up to 64% utilization and is the only for now; it takes 50 GB hard disk, actually 25 GB 25 GB for the multiplayer game; Finally I do not know how you mount your PC, and configure Windows, normally it should rotate smoothly with a Quad Core I, the video card is also important with 1GB see. Personally I have a Core 2 Quad Q9650 overclocked to 3.6 Ghz + 8 GB DDR 2 + GTX 780 3GB + 7 TB of Hard Disk (1TB 64MB cache for the system and some old games, and 2x3 To 64 MB cache for greedier) X-Fi sound card, Windows 7 64 Bit, all well optimized for fast cache, and it runs on it without problems. This is not a recent configuration, except the graphics card, all games carbides fine, except Spider-Man 3, which refuses to turn on a 64 Bit system (if someone successfully called me please how Merci). We are PC and not on a home console, take 5-10 minutes to optimize its machine is not luxury and obtained the games even more beautiful and more fluid eg Tomb Raider PS3 - XBOX ONE - max 30 fps; PC - 50-60 Fps!. In short a good Call of Duty accessible to all, I'm a normal player not a psycho Mouse (laughter !!), that honors to others. Thank you Amazon!