After looking time and time again I have been wondering, back before TWC was released, probably in the planning process I think they were considering to put the United States in as a civ instead of any revolution feature at all. The reason I believe this of course is(and correct me if other countries used these often) because all the revolution civs had gatling guns, iron clads, which were common for the United States for the time I believe, and colonial military that seems to reminds me of their infantry. Anyhow to me I would think that they decided to not put the United States in because as the TWC expansion was mostly focusing on Native Americans they did not probably want to put in a civ not related to the natives and another reason I think would also be that they wanted to give the Europeans a little extra feature when they released the expansion. So this was just on my mind and I would like it if others talked about their opinions and help me come to a bit of a conclusion here.