Complete "Last Rites"
Collect all secrets in Siberian Strike campaign
Continue playing to unlock this secret achievement.
Complete "It Takes Two"
Complete "Operation Siberian Strike"
Begin the hunt
Complete the game on Casual
Complete the game on Medium
Complete the Campaign using max one medkit per mission
Complete the game on Expert
Collect all secrets in Act 3
Complete Act 2
Collect all secrets in Act 2
Kill 30 enemies using your sidearm
Achieve 100% accuracy in any single player mission
Complete Act 1
Complete any act without using medkits
Kill 15 enemies with a stealth kill
Collect all secrets in Act 1
Kill three or more enemies by shooting a grenade
Take 50 headshots in single player
Kill 20 enemies from a distance of 600m or greater
Take a successful shot from a distance of 1 km or greater
Kill 100 opponents in multiplayer
Win 25 Team Deathmatch rounds
Take 50 headshots in multiplayer
Kill 50 opponents in multiplayer
Win 10 Team Deathmatch rounds
Take 25 headshots in multiplayer
Kill 10 opponents in multiplayer using your sidearm
Kill 25 opponents in multiplayer
Win 5 rounds in a row in Team Deathmatch
In one multiplayer round kill an opponent with a sniper rifle, sidearm and melee attack
Participate in any multiplayer match
Complete any single player mission without using med kits, but taking damage
Kill 50 enemies while holding your breath
Kill 25 enemies using thermal or night vision goggles