Amazon's pre-order numbers indicate Activsion's Call of Duty gravy train is still going full steam. Earlier today, Amazon UK told MCV that Call of Duty: Black Ops 2 pre-orders were three times higher than its predecessor, Black Ops, two years ago. We wanted to know if that anticipation crossed the pond.

"Pre-orders from day one of Black Ops 2 were more than ten times the amount of pre-orders for the first Black Ops on its first day of availability," Amazon US told Joystiq this afternoon, but that's not all the buzz.

"Black Ops 2 even out pre-ordered the first day of availability for Call of Duty: Modern Warfare 3 by more than 30 percent. Modern Warfare 3 currently holds the record for the most pre-ordered game of all time and was amongst the top 20 pre-orders ever on Amazon.com, including books and movies."

Call of Duty: Modern Warfare 3 went on to gross over $775 million globally in five days, flying past Call of Duty: Black Ops' $650 million record and the $550 million record before it, set by Modern Warfare 2.