Care to share some more information about it? I haven't even heard about Call of Duty.
"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram
Call of Duty is a new first person shooter made by a few of the same people behind the Medal of Honor series, but It's much more in depth, and better action. I have a thread about in GG somewhere I think.