This successor of World at War is the seventh game to be released under CoD series. Within 24 hours of release it managed to sell over 5.6 million copies; by 2011, 25 million copies were sold worldwide making it one of the best-selling video games in US, UK and Europe.
The game introduced crossbows with bolts and explosive ammunition as well as Dragon's Breath rounds and ballistic knives. It undoubtedly presented a compelling campaign and delivered a break from the modern war scene as in Modern Warfare. Following its prequel, Black Ops earns a spot on this list.