While I love the Minuteman to death (it might actually be my favorite UU in the game), I can't help but think that if one UU had to be dropped for something new, the B-17 is more important to represent. I hope that VI might introduce a third unique to every civilization, because America with the Minuteman, B-17, and Pioneer would be just about perfect. One way to represent a pioneer without adding a unit? This tweaked (admittedly OP) UA: Manifest Destiny: All land military units have +1 sight. 50% discount when purchasing tiles. Scouts may found cities. A Scout that could settle new cities would approximate a Pioneer unit -- fast moving, nominal defense against barbarians, doesn't hinder growth during production. Too bad it would be totally unbalanced. America could easily settle three new cities before anyone else has settled one.