The battles campaign take place all over the world: players can enjoy beautiful landscapes of Russia, Cuba and Vietnam. Although the storyline seems too complex and unclear at first, everything comes into order towards the end. The single-player campaign is presented as the memories of a soldier who suffers from a memory loss and players have to play through the moments that he can recall. It is the seventh game to come out in the Call of Duty series. This is a first-person shooter video game developed by Treyarch and released worldwide on Novemfor all major gaming systems.