Here is the full list of all 39 Undaunted Normandy achievements.
Completed one game of Undaunted: Normandy
Won La Raye scenario as the US player
Won Montmartin-En-Grainges scenario as the US player
Won Raid Across the Canal scenario as the US player
Won Behind Enemy Lines scenario as the US player
Won Crossing the Vire scenario as the US player
Won Desperate Withdrawl scenario as the US player
Won La Huberderie scenario as the US player
Won Streets of Tessy-sur-Vire scenario as the US player
Won Reinforcements scenario as the US player
Won Critical Intelligence scenario as the US player
Won Hill 314 scenario as the US player
Won Mortain scenario as the US player
Won Castle Itter scenario as the US player
Won Night Owls scenario as the US player
Won La Raye scenario as the German player
Won Montmartin-En-Grainges scenario as the German player
Won Raid Across the Canal scenario as the German player
Won Behind Enemy Lines scenario as the German player
Won Crossing the Vire scenario as the German player
Won Desperate Withdrawl scenario as the German player
Won La Huberderie scenario as the German player
Won Streets of Tessy-Sur-Vire scenario as the German player
Won Reinforcements scenario as the German player
Won Critical Intelligence scenario as the German player
Won Hill 314 scenario as the German player
Won Mortain scenario as the German player
Won Castle Itter scenario as the German player
Won night Owls scenario as the German player
Won a game playing on Easy Mode
Won a game playing on Normal Mode
Won a game playing on Hard Mode
Won a game controlling an objective with the last Rifleman card
Won a game of Undaunted: Normandy online
Fired a mortar at three enemy units
Fired a mortar at one of your own units
Win a scenario without firing a shot
Draw four fog of war cards in a single hand
Win a scenario without ever having the initiative