The feature reveals that one character from the original Modern Warfare will be making a return in Modern Warfare 2.
Sergeant John "Soap" MacTavish will make an appearance as a NPC, heading up an international force called Task Force 141.
The story of the game is a continuation of Modern Warfare's and deals with the world facing "dangerous political instability in Russia," with terrorist groups trying to hijack Russia's nuclear weapon arsenal.
Game Informer also described a mission which sees MacTavish lead a squad against Russian fighters in snowy mountainous territory, where snowmobiles and ice picks are used.
Other notable game features include moveable turrets, riot shields and customised weapons for single player.
Gameplay will also be more open-ended than Modern Warfare according to Infinity Ward, but will still follow a linear story.
Unfortunately co-op play through the single player campaign won't be available but there will be separate missions that can be played cooperatively.