# More weapons
Successfully complete the game on the "Ensign" difficulty setting to unlock terrorist weapons in the armory during single player mode. Successfully complete the game on the "Lieutenant" difficulty setting to unlock the MGL (Multiple Grenade Launcher).
# Level select
Successfully complete the game on the "Lieutenant JG" difficulty setting to unlock the "Level Select" option.
# Lieutenant JG difficulty
Successfully complete the game on the "Ensign" difficulty setting to unlock the "Lieutenant JG" difficulty.
# Lieutenant difficulty
Successfully complete the game on the "Lieutenant JG" difficulty setting to unlock the "Lieutenant" difficulty.
# Lieutenant Commander difficulty
Successfully complete the game on the "Lieutenant" difficulty setting to unlock the "Lieutenant Commander" difficulty.
# Commander difficulty
Successfully complete the game on the "Lieutenant Commander" difficulty setting to unlock the "Commander" difficulty.
# Captain difficulty
Successfully complete the game on the "Commander" difficulty setting to unlock the "Captain" difficulty.
# Rear Admiral difficulty
Successfully complete the game on the "Captain" difficulty setting to unlock the "Rear Admiral" difficulty.
# Admiral difficulty
Successfully complete the game on the "Rear Admiral" difficulty setting to unlock the "Admiral" difficulty.
# Snipers on large maps
On large maps with a lot of places that could hide snipers (such as the Rescue POWs mission), give Boomer and Specter sniper rifles. The have a great chance of seeing something you do not, and killing it before you can find it.
# Easy kills
Arm Boomer and Specter with a high power rifle and keep saying "Bravo snipe", or yell into headset and say "Team low profile". It will take a long time, but Bravo will kill all the terrorists in the mission.
# Using headset with PC
You can plug your SOCOM headset into the USB port on a PC for instant access to headphones or a microphone.
# Secret headset commands
The following is a list of some secret commands to say into the headset:
"Hands up, get down" (sneak up to guards and yell it).
"Breech, Bang, Clear" (clear a room by pointing crosshairs into it - your team will throw in two bang, grenades, and a frag).
"Team low profile" (team sneaks around killing terrorists stealthy).
"Don't ask don't tell" (team not very helpful and dumber than usual).
"Get down" or "Hands up" (used to get enemies to surrender).
"Bravo open door."
"Bravo diffuse bomb" (when pointing crosshairs at bomb).
"Bravo kill me" (They will kill you).
"Bravo open/close door" (when close to a door -- point at it with the crosshairs).
"Bravo report status" (They will tell you what they are doing).
"I got a gun! What do you got?"
If Spectre or Jester is carrying a sniper rifle, you can use the command "Bravo Snipe".
There is a headset command that you do not see in the list, "Bravo/team snipe". It requires that you selecte one snipe rifle for both (A and B) at least, and that you are pointing your crosshairs on the enemy you want to snipe. The game will give you this as an "attack to", but the attack is by sniping (even if the other teammates have a simple rifle). This does not always work.
# Weapon and equipment list
Pistols
226 Pistol
DE . 50 Pistol
F57 Pistol
M9
Silenced Pistols
Mark 23 SD Silenced Pistol
9MM pistol
Automatic Pistol: Glock Model 18
Carbines and Grenade Launchers
M14 Rifle
M16A2 Rifle
M16A2-M203 Rifle
AKS-74 (Long Stock) Rifle
AKS-74 (Folding Stock) Rifle
AK-47 Assault Rifle
M4A1 Assault Rifle
M4A1 SD Assault Rifle
M4A1-M203 Assault Rifle
552 Submachine Gun
HK5 Submachine Gun
HK5 SD Submachine Gun
F90 Machine Gun:M60E3 Machine Gun
M63A Grenade Launcher
M79
Sniper Rifles
M40A1Sniper Rifle
M82A1ASniper Rifle
SR-25Sniper Rifle
SR-25 SD
Equipment
AN-M8 Grenade
HE Grenade
M67 Grenade
M79 Frag Round (6) Grenade
M79 HE Round (6) Grenade
M79 Smoke Round (3) Grenade
M203 Frag Round (6) Grenade
M203 HE Round (3) Grenade: Mark 141 Flash Bang
Mine: Claymore
Explosive:C4 Explosive
Satchel Charge
Equipment: Double Ammo
Game Shark Codes
Master Code (Must Be On) 0E3C7DF2 1853E59E
EE88C72E BCBF9792
Disable AI DEB63496 BCA99B83