Enter the Data Vault and highlight the "S" logo that normally allows access to "Dead Ops Arcade 2". Hold L1 + R1 + L2 + R2 and press Square + Triangle to display a hidden code entry menu. Enter one of the following codes to activate the corresponding cheat function.
| Effect | Code
|
|---|
| 100 Fabrication Kits | MANIFEST
|
| Nightmare mode | DREAMLAND
|
