User blog comment:Damac1214/Sledgehammer Games Says They Would Jump at the Chance to Finish Action Adventure Call of Duty if Activision Gave the Go Ahead/@comment-1187559-20140516143551

“It’s kind of unpopular. And we didn’t really understand the marketing aspect of that.”

Well for one, I don't think it would be unpopular, unless you only consider popularity based on if America wins or not. Since I wouldn't mind a Vietnam game, and so far I've had to shoot British troops and watch my Capital City get gas bombed (which of course killed American tourists for extra impact).

And as for how to market it? Well, *cough* *cough*.