At the beginning of the mission when you rescue the ambassador, sweep the area. Once it is clear, walk up the path. When you reach the stairs, go up to the top, then turn right and walk. You will see a patch of grass and a tree. Keep going straight and you will reach a dead end. Look to the left and you will see a secret passage. Go through, and when you get to the other side there will be a guard. Kill him and move stealthily. The two snipers on the roof will not notice you there. Take them out, then continue your mission.
Captain difficulty
Complete single player on Commander.
Connection bonuses
Link to a PSP with SOCOM 3 Fireteam Bravo and complete the indicated task to unlock the corresponding bonus:
Al-Kamil Sarwat (North Africa Terrorist): Successfully complete North Africa.
Chopper (South Asia SEAL): Successfully complete South Asia.
Dr. Basia Mironova (Poland Terrorist): Successfully complete Poland.
Front Grip: Successfully complete South Asia.
IW-80 A2: Successfully complete the Poland.
Medium Scope: Successfully complete the South Asia.
STG-77: Successfully complete Poland.
Floating gun
Have all of the following: rocket launcher, sniper rifle, pistol, and binoculars. Take out the rocket launcher, click the weapons menu, and select the binoculars. Then, switch to the sniper rifle with the menu. Your gun should now be floating and your character should be firing the rocket launcher.
Front grip
Complete the game on Captain difficulty to unlock the front grip online.
Funny comments
Play the mission where you have to escort a friendly and get information from villagers. Once you get the information from the second person, silently kill all terrorists in that village. Then, sneak up on the outhouse and sit in front of it. After about thirty seconds you should hear a terrorist scream "Oh God -- how can you be constipated and have diarrhea at the same time?". Additionally, if you wait long enough at the overview briefing of any mission, Fireteam will begin to make fun of the mission or those involved.
Medium scope
Complete game on Captain.
Movies
Successfully complete the indicated task to unlock the corresponding movie:
Credits: Successfully complete the game with an Ensign or higher rank.
Making The Music: Successfully complete the Flashpoint or Deep Strike missions.
North African Introduction: Successfully complete North Africa.
Poland Introduction: Successfully complete Poland.
South Asia Introduction: Successfully complete South Asia.
Multiplayer Characters
North Africa - Al-Kamli Sarwat (Terrorist) - Complete North Africa on any difficulty
North Africa - KILLJOY (Seal) - Training Missions Completed
North Africa - Seal Jungle Ghillie Suit - Complete N.A. on either Commander, Captain, or Admiral
North Africa - Terrorist Jungle Ghillie Suit - Complete N.A. on either Commander, Captain, or Admiral
Poland - COLDKILL (Seal) - Complete Poland on any difficulty
Poland - Dr. Basia Mironova (Terrorist) - Complete Poland on any difficulty
Poland - Seal Winter Ghillie Suit - Complete Poland on either Commander, Captain, or Admiral
Poland - Terrorist Winter Ghillie Suit - Complete Poland on either Commander, Captain, or Admiral
South Asia - CHOPPER (Seal) - Complete South Asia on any difficulty
South Asia - Hari Raman (Terrorist) - Complete S.A. on Captain or Admiral
South Asia - Seal Desert Ghillie Suit - Complete S.A. on either Commander, Captain, or Admiral
South Asia - Terrorist Desert Ghillie Suit - Complete S.A. on either Commander, Captain, or Admiral
Scarecrow character skin
If you achieve 24 hours played online in Socom III, the character skin "Scarecrow" is then unlocked and can be used.
Shoot rocket while running
Open the weapons inventory and have your primary weapon equipped. While your inventory is open, scroll to your RPG/AT-4. When this is highlighted, press X then Square almost at the same time. If done correctly, you should be able to run and shoot rockets out of your primary weapon (for example, assault rifle, sniper rifle, or machine gun).
Sick raider in Heart Of The Fist
When you find the third crate of the ship's cargo, there is an outhouse next to the tent. If you stand in front of the door you can hear a raider complaining about the soup he ate.
Songs
Successfully complete Single Player mode on the indicated difficulty setting to unlock the corresponding song:
Around The Corner: Lieutenant
Hidden Fortress: Lieutenant
Hunted: Lieutenant
Into The Firefight: Captain
Land In Ruins: Lieutenant
Last Stand: Captain
Mahmoud's Escape: Captain
On The Prowl: Lieutenant
Resurrection: Captain
Trouble On The Horizon: Captain
Unlock GROM Weapons
Complete game on Captain.
Unlock IW-80 A2
Complete game on Admiral difficulty.
Unlock SBS Weapons
Complete game on Commander.
Unlock SEAL Weapons
Complete game on Ensign.
Unlock STG-77
Complete game on Admiral difficulty.
Unlock Terrorist Weapons
Complete game on Lieutenant.
Walk on air
In multi-player mode, start with an HK5, rocket launcher, and claymore. You must also have a SEAL who does not have the camo suit. Find a place where you can climb. Set a charge far from where you are going to climb, then switch your L1 option so that your detonator and rocket launcher are selected. Then, go to the climb location. Do not climb it yet. Switch to the detonator so that you can see the climb symbol, then switch twice; once to the rocket launcher then back to the detonator. Detonate, then press X and climb. This should automatically set your weapon to the rocket launcher and you should be crouching. Try climbing something that you would normally fall from. Notice that you are now in mid-air. If you switch in mid-air you will fall to your death. Use this trick to gain a lot of ground and reach the high sniper spots.