Bonus Modes
| Unlockable | How to Unlock |
| Arcade Mode | Beat campaign on regular difficulty or above |
| Mini-Game Mode | Beat campaign on any difficulty |
| Survival Mode | Beat campaign on hardened difficulty |
Unlock Survival Mode Immediately
In the Options screen in the War Room type in this password: Select, L, R, Select, Y, Y, X, R, L, X, R, Y. The effect of this code only lasts until you turn off your DS, after which you must re-enter the code if you want to use it again. You cannot save your progress with the code active.
Multiplayer weapons, Weapons Room (Bonus mode)
| Unlockable | How to Unlock |
| AA12 Automatic Shotgun | 100 Multiplayer kills with the Allied faction |
| AN94 Assault Rifle | 100 Multiplayer kills with the Enemy faction |
| Heckler-Koch HK MG4 | 500 Multiplayer kills with the Enemy faction |
| M249 SAW Machine Gun | 500 Multiplayer kills with the Allied faction |
| M4 with Red Dot Scope | 50 Multiplayer kills with the Allied faction |
| P90 Sub Machine Gun | 300 Multiplayer kills with the Allied faction |
| Skorpion Machine Pistol | 50 Multiplayer kills with the Enemy faction |
| Steyr AUG A3 | 300 Multiplayer kills with the Enemy faction |
| Weapons Room | Beat the Campaign on the Regular difficulty |
