Defeat the prison gang leader in Champion Mode

Defeat the prison gang member in Champion Mode

Attempt to access DNA Sequence 9 for the first time.

Complete "An Appointed Time".

Kill 500 enemies with any rifle, repeater, or shotgun in any game mode.

Used the Hack Tool to hack an object at a distance.

Scored your first kill in a non-private match.

Complete the campaign on any difficulty.

Enter the Soviet relay station undetected.

Silently take out 3 VC.

Escape Kowloon.

Rack up a body count of 20 NVA using air support in Hue City.