Call of Duty
is the best series ever. According to Wikipedia, Black Ops is a first-person shooter video game developed by Treyarch, published by Activision and released worldwide on November 9, 2010 for Microsoft Windows, Xbox 360, PlayStation 3, Wii consoles, with a separate version for Nintendo DS developed by n-Space. Announced on April 30, 2010, the game is the seventh installment of the Call of Duty series. It is also the first to be set in the Cold War and the fifth to be set in World War II. It is the third in the series to be developed by Treyarch, and is a sequel to the developer's Call of Duty: World at War.
These are the Call of Duty games:
1. Call of Duty
2. Call of Duty 2
3. Call of Duty 3
4. Call of Duty 4: Modern Warfare
5. Call of Duty world at war
6. Call of Duty Modern Warfare 2
7. Call of Duty BLACK OPS
8. Call of Duty MW3