Call of Duty: Black Ops has surpassed the $1 billion worldwide sales mark after just six weeks of availability, Activision announced today.

That milestone joins a growing number of impressive feats the title has enjoyed since its launch on November 9.

In just its first day of availability, Call of Duty: Black Ops tallied $360 million in worldwide revenue, easily besting its predecessor, Call of Duty: Modern Warfare 2, which generated $310 million on its launch day.

The game then followed that up with the biggest entertainment launch in history, making $650 million in its first five days of availability. Modern Warfare 2 made $550 million during its first five days on store shelves.

It took Modern Warfare 2 until January--approximately two months--to reach the $1 billion worldwide sales figure Black Ops surpassed in six weeks.

Full story: c|net