I'm actually not that familiar with the game or the series, and I'm sick of seeing these "real-is-brown" first-person shooters, so nothing of value would be lost to me if this story ends up sinking the series.
Really, I just thought this was an interesting story.
CoD is hardly realistic. The US Army came out with a pretty damn realistic game a while back, and every day the forums were filled with CoD players complaining about some aspect of the game that there experience with CoD said was realistic. It really says something about society when a bunch of teenagers on XBox think they know more abut combat and weapons than the Army.