Campaign: finish Zero Dark Thirty

Campaign: destroy 1000 objects

Campaign: 50 kills with sniper rifles

Campaign: 50 kills with sub machine guns

Campaign: drive 5 km in any land vehicle

Campaign: demolish 1 house

Campaign: find 15 collectable weapons

Campaign: finish Upriver

Campaign: destroy 1 satellite uplink

Campaign: finish Cold War

Campaign: finish Operation Aurora

Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.

Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.