Rainbow Six: Lockdown Cheats - GameCube

Cheat mode
Spend the indicated amount of Intel points at the "Special Features" menu to acquire the corresponding cheat. To activate them, pause game play, then select the "Enter Cheat Code" selection at the options menu. The name of the code will appear to confirm correct entry. Repeat the code to disable its effect.

Increased Force (650 Intel Points): Press [Right]x3, [Down]x3.
Invisible (900 Intel Points): Press [Down]x3, [Up]x3.
One Shot Kills (600 Intel Points): Press [Up]x3, [Left]x3.
Unlimited Ammo (550 Intel Points): Press [Up], [Down], [Up], [Down], [Left], [Right].
Unlimited Items (550 Intel Points): Press [Left], [Right], [Left], [Right], [Up], [Down].
Fast Movement (450 Intel Points): Press [Left]x3, [Right]x3.
Ghost Mode (250 Intel Points): Press [Up]x2, [Left], [Right], [Down]x2.
God Mode (600 Intel Points): Press [Up], [Right], [Left], [Up], [Down]x2.
Team God Mode (450 Intel Points): Press [Left], [Down], [Up]x2, [Right], [Left].

Weapons
Spend the indicated amount of Intel points at the "Bonus" menu to acquire the corresponding weapon.

AS9: 60 Intel Points
GL69A: 100 Intel Points
M249SPW: 80 Intel Points
MP7SD: 40 Intel Points
MTAR-21: 70 Intel Points
P90TR: 80 Intel Points
SPAS 15: 40 Intel Points
SR-4 CQB: 100 Intel Points
U100MK3: 60 Intel Points
UMP-9: 50 Intel Points
USAS 12: 70 Intel Points

Artwork
Spend the indicated amount of Intel points at the "Special Features" menu to acquire the corresponding artwork.

Part I: 10 Intel Points
Part II: 10 Intel Points
Part III: 10 Intel Points
Part IV: 10 Intel Points

Level 1
Always shoot hinges or locks instead of blowing them because it is quieter.

Always crouch behind objects and make sure that your squad is with you shooting or your are guaranteed a death.

Shoot through the car windows. They are a useful shield.