Land on all landing zones.
Watch the credits
Complete a mission with depleted ammunition.
Crash your helicopter during training.
Complete an attack mission with a cargo helicopter.
Get all of the weapons.
Own all the helicopters. (Hind not included)
Find the artifact in the desert.
Complete Mission #30 without retrying from landing zone.
Find the Ferris Wheel in the taiga.
Land on the drop zone with one man left behind.
Find the Rubik's Cube.
Destroy 500 enemies.
Find the Swords in the fjords.
Transport 200 soldiers.
Complete training.
Promotion for 20 stars.
Promotion for 10 stars.
Promotion for 30 stars.
Promotion for 40 stars.
Promotion for 60 stars.
Promotion for 50 stars.
Promotion for 70 stars.
Promotion for 80 stars.
Promotion for 90 stars. Orders General?
Defeat the boss on level 35.
Promotion for 105 stars.
Collect 175 dog tags.