BRAVE NEW WORLD CIV 5 MISSING CIVS FREE
Minuteman, which replaces Musketman in Reneissance era, is a good unit to spam because they have a free promotion, which ignores terrain costs and it carries over when upgrading to Rifleman. Though their unique units are somewhat useful. Unique ability Manifest Destiny is not really useful as it only increases vision of land units by +1 and gives 50% discount on buying land tiles. Unsurprisingly, Washington is a leader biased towards domination victory.
Scenario specific difficulty achievements are located in their own section