Call of Duty: Modern Warfare 2 preloading has started

Call of Duty: Modern Warfare 2 (opens in new tab)

is set to go into full release on October 28,

but if you preorder you can jump into the campaign right now, on October 20.

Activision clarified that this preload is strictly for the singleplayer campaign:

Preloading for the full launch, which will also include multiplayer and special ops,

will begin the following week, just ahead of the official launch date.

Modern Warfare 2 will finally, fully unlock at 9 pm PT on October 27,

which as illustrated in the handy map below is

actually October 28 in most of the rest of the world.