Minutemen are actually a staple trope in many video games, so no surprise here. But they come during the Renaissance, which is funny. You can only give US industrial and later eras units, and there are hardly any special buildings (there are plenty of US-based 'wonders' anyway). I think the bomber is fine, and I feel like it is simply there due to legacy. It existed in Civ III. As for the UA, we should get one that reads, "stealing land from the Shoshone and the Iroquois and razing their cities gives double yields and bonus gold." The US hardly ever purchased any land and mostly displaced Native Americans into reservations. So... not accurate at all.