Call of Duty: Modern Warfare 2 by Activision for PC is a combat FPS and the sixth game in the Call of Duty series. Comparable to the "Mile High Club" epilogue mission in Call of Duty 4: Modern Warfare is a "Special Ops" mode that consists of isolated missions in a variety of settings unrelated to the campaign story. The main campaign is single-player only, but the "Special Ops" mode supports two-player cooperative play. Missions in this mode were created from portions of levels in the campaign, and feature such scenarios as a snowmobile race, a battle alongside U.S. Navy SEALs, and fending off a wave of 50 enemies at once. The game will be released worldwide on 10 November.