There is a Call of Duty Q&A on GameSpot with Vince Zampella, chief creative officer of Infinity Ward, to find out more about this first-person WWII action game, which features three campaigns worth of historically based World War II missions involving US, British, and Soviet forces:
GS: We understand that the American and British single-player campaigns will take place mostly on the western front, whereas the Russian campaign will begin in Stalingrad and eventually move to Poland. Can we expect to see a lot of missions and areas based specifically on historical battles and operations?
VZ: There are many missions based on historical operations, and many more based on historical locations. We put a lot of effort into creating an authentic environment for Call of Duty. This type of game really needs that kind of attention to accurately portray some of the more epic moments of WWII.