I'd personally like to see the CoD franchise try something different such as the Vietnam or first World War era. Maybe even Civil War. Something really different.
vietnam? like black ops?
and wouldnt civil war era just mean you get one shot per minute? that doesnt seem so fun.
That would be the Revolutionary War. The Civil War was when things started to get more modern, and more dangerous. Had some of the first Lever Action Rifles around the time that could/can do some serious damage. The Gatling Gun would be nearly impossible to implement, but it was their so they could make up some variant to it, but it was not as "Boring" as some people think. It's not known as the "Bloodies War" in America history for nothing.