Show In-Game Coordinates - Open the Pause Menu then press the following buttons to display in-game coordinates of your character in the bottom-right corner of the screen:

Square, Triangle, Circle, Circle, L1, Triangle, Circle, Circle, Triangle, Square

Tested, and works in Single-player and Multi-player. Good for coordinating in larger multi-player maps.

How to Obtain all Badges - Obtaining badges will allow you to unlock items. Here's how to obtain all badges.

ABOVE AND BEYOND BADGE Complete all bonus objectives in campaign mode during your career
ANTI-ARMOR BADGE Destroy at least 10 vehicles during your career

BASTILLE BADGE Capture at least 40 enemies during your career

CAPTURE BADGE Complete all CAPTURE Instant Action missions at any rank
COMMUNICATOR BADGE Complete all SOCOM: Combined Assault crosstalk objectives in campaign mode during your career
COVER OPS BADGE Complete the campaign with a cumalative stealth score greater than 300,00 points

DEFUSE BADGE Complete all DEFUSE Instant Action missions at any rank
DEMOLISH BADGE Complete all DEMOLISH Instant Action missions at any rank
DODGER BADGE Complete a mission with no team members downed and no medkit charges used

EFFICIENCY BADGE Complete the campaign with an elapsed time less than 7:00:00
ESCORT BADGE Complete all ESCORT Instant Action missions at any rank
EXEMPLARY RECORD BADGE Complete the campaign with a cumalitive performance score greater than 400,000 points
EXTRACT BADGE Complete all EXTRACT Instant Action missions at any rank

FIRST AID BADGE Use 40 medkit charges during your career
FROGMAN BADGE Complete the campaign at the rank of Commander or Higher

GRENADIER BADGE Neutralize at least 40 enemies with explosives during your career

LIQUIDATOR BADGE Neutralize at least 600 enemies during your career

MARKSMANSHIP BADGE Complete a mission with an accuracy rating greater than 85%
MELON HUNTER BADGE Neutralize at least 150 enemies with headshots during your career
MERCY BADGE Complete a mission without killing any enemies

OVER ACHIEVER BADGE Complete all Instant Action missions on the rank of ADMIRAL

POQ BADGE Complete the campaign with an an elapsed time less than 4:30:00

RECOVER BADGE Complete all RECOVER Instant Action missions at any rank

SAUSAGE BADGE Obtain all sausages in campaign mode during your career
SEAL BADGE Complete the campaign at the rank of Admiral
SECURE BADGE Complete all SECURE Instant Action missions at any rank
SHADOW OPERATOR BADGE Neutralize at least 150 enemies undetected during your career
SUB-ROSA BADGE Complete a mission with a stealth score greater than 30,000 points
SUPPORT BADGE Complete all secondary objectives in campaign mode during your career

TRIDENT BADGE Complete the campaign with a total score greater than 1,200,000 points
TROPOLE BADGE Complete the campaign at the rank of Ensign or higher

UNSEEN STRIKE BADGE Neutralize at least 20 enemies with knife attacks during your career

You need to first obtain Badges to Unlock these items. Here is the list of items, and how many badges are required for each

ADJUSTABLE SCOPES Badges needed: 06

DEFENSE FORCE WEAPON SET Badges needed: 15

ENEMY EXPLOSIVES Badges needed: 30

JUKEBOX BANG AND CLEAR Badges needed: 21
JUKEBOX BOOMERS REPRISE Badges needed: 15
JUKEBOX CATCH AND RELEASE Badges needed: 15
JUKEBOX CREDITS Badges needed: 21
JUKEBOX FIRE TEAM BRAVO Badges needed: 21
JUKEBOX KARIMINAL Badges needed: 15
JUKEBOX MAIN THEME Badges needed: 15
JUKEBOX ROLL OVER ADJIKISTAN Badges needed: 21
JUKEBOX THE INFINITE SOUL Badges needed: 21
JUKEBOX URBAN DESTRUCTION Badges needed: 21

MERCENARY WEAPON SET Badges needed: 21
MM-I GRENADE LAUNCHER Badges needed: 32

PARAMILITARY HEAVY WEAPON SET Badges needed: 12
PARAMILITARY LIGHT WEAPON SET Badges needed: 09

R44M GUN Badges needed: 27
REBEL WEAPON SET Badges needed: 18

SEAL WEAPON SET Badges needed: 24

Beat the game or sync with Socom:Fireteam Bravo 2 for the PSP for these unlockables.

Credits Complete the Socom Combined Assault campaign at the rank of Ensign or higher.

Endgame Complete the DARK HEART mission in Socom: Fireteam Bravo 2 at the rank of Ensign or higher.

Envoy Complete KINGFISHER in the campaign at the rank of Ensign or higher.

Karim's Orders Complete the RISING TIDE mission in Socom: Fireteam Bravo 2 at the rank of Ensign or higher.

Polaris Complete CHOKHOLD in the campaign at the rank of Ensign or higher.

Shadow Element Sync with Socom: Fireteam Bravo 2.
Stormsurge Complete HIGHWIRE in the campaign at the rank of Ensign or higher.

Turning Point Complete TRAFFIC CONTROL mission in Socom: Fireteam Bravo 2 at the rank of Ensign or higher.