Modern Warfare 3 is finally headed out to PlayStation and the PC on October 10, according to Infinity Ward's Twitter account. The content collection (which arrived on Xbox 360 back in the beginning of September) includes five different maps, called Decommission, Off Shore, Gulch, Boardwalk, and Parish. Call of Duty Elite subscribers will be able to grab the last three levels a day early, on October 9.
This is, of course, the last scheduled content pack for Call of Duty: Modern Warfare 3, seeing as Call of Duty: Black Ops 2 is due out just about a month later. At that point, presumably, those Elite subscriptions will renew, and the cycle of of constant DLC for the biggest shooter series in the world will start up all over again.