Here is the full list of all 51 Naval War: Arctic Circle achievements.
Complete "Show of Force" in NATO campaign on any difficulty.
Complete "Barents Escort" in NATO campaign on any difficulty.
Complete "Arctic Cod Conflict" in NATO campaign on any difficulty without losing more than two aircraft.
Complete "Arctic Cod Conflict" in NATO campaign on any difficulty.
Complete "Air operations" in NATO campaign.
Complete "Air operations" in NATO campaign without losing any aircraft.
Complete "Anti-Sub" in NATO campaign.
Complete "Movement Basics" in NATO campaign.
Sink the hidden (unmarked) Astute sub in "Anti-Sub".
Complete "Arctic Cod Conflict" in NATO campaign on Hard difficulty without losing any aircraft.
Complete "Barents Escort" in NATO campaign on any difficulty without losing any surface ships.
Complete "On the Rocks" in NATO campaign on Hard difficulty.
Complete "On the Rocks" in NATO campaign on any difficulty without losing any submarines or aircraft.
Complete "Iron Weasel" in NATO campaign on Hard difficulty.
Complete "Peekabo in the Fjords" in NATO campaign on any difficulty.
Complete "Peekabo in the Fjords" in NATO campaign on any difficulty, shooting down at least 10 aircraft in the process.
Complete "Baltic Breakout" in NATO campaign on any difficulty.
Complete "Viking Funeral" in NATO campaign on any difficulty.
Complete "North by Northwest" in NATO campaign on any difficulty.
Complete "Convoy 13 No Reply" in NATO campaign on any difficulty.
Complete "Wings of Retribution" in NATO campaign on any difficulty.
Complete the NATO campaign on any difficulty.
Complete the NATO campaign on Hard difficulty.
Complete "Swarm" in Russian campaign on any difficulty.
Complete "Pickled Herring" in Russian campaign on any difficulty.
Complete "Viking Saga" in Russian campaign on Hard difficulty.
Complete "On the Rocks" in Russian campaign on any difficulty.
Complete "On the Rocks" in Russian campaign on Hard difficulty without losing any surface ships.
Complete "Wild Hand" in Russian campaign on any difficulty.
Complete "Hide and Seek" in Russian campaign on any difficulty.
Complete "Hide and Seek" in Russian campaign on Hard difficulty.
Complete "Northern Lights" in Russian campaign on any difficulty.
Complete "Snatch and Grab" in Russian campaign on any difficulty.
Complete "Sharks in the Deep" in Russian campaign on any difficulty.
Complete "Rear Guard" in Russian campaign on Hard difficulty.
Complete the Russian campaign on any difficulty.
Complete the Russian campaign on Hard difficulty.
Complete 1 multiplayer game.
Complete 5 multiplayer games.
Complete 10 multiplayer games.
Complete 20 multiplayer games.
Complete 50 multiplayer games.
Complete 100 multiplayer games.
Complete 200 multiplayer games.
Complete 500 multiplayer games.
Complete 1000 multiplayer games.
Win 1 multiplayer game.
Win 10 multiplayer games.
Win 20 multiplayer games.
Win 50 multiplayer games.
Win 100 multiplayer games.