Call of Duty 4 was one of the most innovative shooters of the last generation. What seemed only a change of time eventually revolutionize the genre, especially with regard to online modes. Since then the series has become annual and never managed to innovate in the same way. That did not stop every year is one of the most sold games and the quality is always very high. With the arrival of the new generation of consoles this was the perfect opportunity for Activision to raise again the series, something that did not happen. Rather, Ghosts is a great FPS but a shot to the side in terms of new ideas, and one that fewer new concepts introduced in the series.