The trailer narrator might as well have said:
White man came across the sea, he brought us pain and misery

This doesn't work at all for me. If they're aiming for the American market, wouldn't the civil war be much more interesting? I don't know much about it, but it feels like it would suit the engine better as well. Getting states to commit to your side in the conflict could make for some interesting gameplay, but I guess they don't want to work on that, just throw out a mini campaign and cash in.