SOCOM II Online Theme - Already unlocked.
Dance of the Unknown - Finish the game on Lieutenant.
Insertion Suite - Finish the game on Lieutenant.
Infiltrator - Finish the game on Lieutenant.
Contortion - Finish the game on Lieutenant.
Tari Tari - Finish the game on Lieutenant.
KGM - Finish the game on Lieutenant.
Gnostec - Finish the game on Lieutenant.
Dark in Your Heart - Finish the game on Captain.
Beach Bossa - Finish the game on Captain.
Brazilicious - Finish the game on Captain.
SOCOM II Finale - Finish the game on Captain.

Sabre - Finish the Albania missions on Commander.
Pius Platz - Finish the Albania missions on Lieutenant.
Feral - Finish the game on Admiral.
Quixada Christo - Finish the Brazil missions on Commander.
Reaver - Finish the Algeria missions on Commander.
Algerian Officer - Finish the Algeria missions on Lieutenant.
The Specialist (Flatfoot) - Finish the Russia missions on Commander.
Valeska Lukanov - Finish the Russia missions on Lieutenant.

Finish the game on Commander.

In single player mode approach a terrorist, hold the voice command button and say, ''Intimidate.'' By doing this, you or one of your teammates proceeds to say, ''Get on your knees!''.

Finish the game on Ensign or above.

SEAL Weapons - Finish the game on Ensign. Terrorist Weapons - Finish the game on Lieutenant.
SAS Weapons - Finish the game on Commander.
Spetsnaz Weapons - Finish the game on Commander.
MGL (Multiple Grenade Launcher) - Finish the game on Captain.
OICW - Finish the game on Admiral.

Albanian Intro Movie - Already unlocked.
Brazilian Intro Movie - Finish the Albania missions.
Algerian Intro Movie - Finish the Brazil missions.
Russian Intro Movie - Finish the Algeria missions.
Making the SOCOM II Music Movie - Finish the game on Lieutenant.