NOTE: This news has been out for a while (more specifically, last month) but still relevant.
Call of Duty: Black Ops has the greatest video game ending, according to Guinness Book of World Records.
It amassed 13,000 votes to find the best video game ending for an entry in the Guinness Book of World Records 2012 Gamer's Edition Book.
The game competed with other 49 games including Halo: Reach, GTA IV, Mass Effect, and many others.
Other Call of Duty games included are Call of Duty 4: Modern Warfare , Call of Duty: World at War , and Call of Duty: Modern Warfare 2 .
The complete list of games competed are in the link.