Here is the full list of all 11 The Bluecoats: North & South achievements.
Win three times in a row in hard mode
Play a local multiplayer game
Complete a game in 1861, 1862, 1863 and 1864
Take control of your first train
Create a powerful army by merging three armies
Win ten battles
Win your first victory
Win in less than five months
Take control of your first fort
Win ten victories
Capture the five forts in a single game