According to this MCV piece, Call of Duty: World at War is the UK's third fastest selling game of all time.
The shooter debuted at number one in the British charts for the week ending November 15.
Between it and Wrath of the Lich King, Activision Blizzard games accounted for 25 percent of all boxed product sold in the UK last week.
More through the link. Thanks, G1GAHURTZ.