The Case Blue Mission Pack Add-on for Company of Heroes 2 has 18 achievements.
Complete the Theater of War Battle: Retreat at the Don on Conscript difficulty
Complete the Theater of War Challenge: Tiger Ace on Conscript difficulty
Complete the Theater of War Challenge: Tiger Ace on Captain difficulty
Complete the Theater of War Challenge: Tiger Ace on General difficulty
Complete the Theater of War Battle: Retreat at the Don on Captain difficulty
Complete the Theater of War Battle: Retreat at the Don on General difficulty
Complete the Theater of War Challenge: Convoy on Conscript difficulty
Complete the Theater of War Challenge: Convoy on Captain difficulty
Complete the Theater of War Challenge: Convoy on General difficulty
Complete the Theater of War Scenario: Assault on Voronezh on General difficulty
Complete the Theater of War Scenario: Assault on Voronezh on Conscript difficulty
Complete the Theater of War Scenario: Assault on Voronezh on Captain difficulty
Complete the Theater of War Battle: Kharkov Pursuit on Conscript difficulty
Complete the Theater of War Battle: Kharkov Pursuit on Captain difficulty
Complete the Theater of War Battle: Kharkov Pursuit on General difficulty
Complete all Theater of War missions in Case Blue on Conscript difficulty
Complete all Theater of War missions in Case Blue on Captain difficulty
Complete all Theater of War missions in Case Blue on General difficulty