Complete North Sea mission three without hitting any mines
Complete North Sea mission two without surfacing
Complete the Prologue mission without hitting friendlies
Complete the tutorial mission
Earn 130 stars
Complete North Sea mission one with the Stingray
Complete North Sea mission one without using torpedoes
Complete North Sea mission one without taking damage
Capture three ships in North Sea mission two
Destroy twenty mines in North Sea mission three
Destroy all six guns in North Sea mission three
Complete the North Sea missions
Complete North Sea mission four in the Victory
Shoot down ten bombers in North Sea mission five
Complete Cape Farewell mission one in the Stingray
Capture five ships in Cape Farewell mission two
Complete Cape Farewell mission three without using the deck gun
Complete Cape Farewell mission four taking fifty percent damage or less
Shoot down eight fighters in Cape Farewell mission five
Complete Bay of Biscay mission one in the Sentinel
Destroy twenty mines in Bay of Biscay mission two
Destroy three enemy subs in Bay of Biscay mission three
Complete the Bay of Biscay missions
Complete Bay of Biscay mission four without hitting friendlies
Shoot down twenty fighters in Bay of Biscay mission five
Complete English Channel mission one without using torpedoes
Complete English Channel mission two in the Patriot
Shoot down twenty fighters in English Channel mission three
Complete English Channel mission four taking thirty percent damage or less
Shoot down ten bombers in English Channel mission five
Complete US East Coast mission one without hitting friendlies
Capture seven ships in US East Coast mission two
Complete US East Coast mission three using eight or fewer torpedoes
Complete the English Channel missions
Complete US East Coast mission four taking twenty percent damage or less
Complete US East Coast mission four without using torpedoes
Complete US East Coast mission five in the Sentinel
Complete an online game
Win an online game
Intercept 4 transmissions in a 3 minute game
Win an online game to 3 points with all other players at zero
Complete the Cape Farewell missions
Complete the game
Earn 75 stars
Earn 90 stars
Earn 110 stars
