Pause the game, then hold L + R and press B(2), Left, Y, B, A. The following codes may now be enabled:
Commit suicide
Enable the "Cheat mode" code, then press A, Y, B, Right, Y, B.
Disable shellshock
Enable the "Cheat mode" code, then press White, R, White, L, Y(2).
Hide HUD
Enable the "Cheat mode" code, then press B, Down, B, Up, Y, B.
Kill nemesis
Enable the "Cheat mode" code, then press Down, White, L, Up, X. The person you have to hunt down in various missions will be killed.
Pickup OSS Document
Enable the "Cheat mode" code, then press Up, A, Black, R, Up, X.
Defeating the Nemesis Bosses
Before you get to the Nemesis Bosses, fill up your adrenaline meter. This can be easily done by performing head shots. Once your meter is full, save it until you get to the Boss. Once you see him, press Up. You will now have limited immortality and unlimited ammunition. If you have a sniper rifle, you can shoot the Boss in the head a few times. If you have a sub-machine gun such as a Thompson or an STG-44, you can run up to the Nemesis and just shoot him. Another way to inflict serious damage is to use a rocket launcher. Note: You will not have unlimited ammunition for this; it is best to have a good back-up weapon. If you still have not killed the Boss and your meter is almost empty, take cover. Also, if there are enemies surrounding the Boss, which is true in most circumstances, eliminate them before you attack the Boss.
Defeating the Nemesis in final mission
You will start with an M1 Garand and a BAR rifle at the beginning of the level. Walk down the bunker you start at and choose the bazooka for the Garand. Take the BAR and save the bazooka ammunition for the Nemesis. By doing this, you can use three bazooka shots on him and defuse the bomb.
Easy completion of Operation Chariot mission
In the beginning of the first level, charge up to the Nazis and shoot with your machine gun. A soldier will shoot at you from a crane; ignore him. Go to the far right to find the cap. If you still have ammunition, more Nazis will appear; shoot them quickly. You must return to the first part of the dock you came from to complete the level.
Final objective in Operation Virus House mission
After making your way up the stairs to the courtyard where Von Schrader is found, use Adrenaline mode and defeat him. Then, run out of the courtyard and go up the stairs that were previously barricaded. Proceed to take out the two guards, then run through the doors until you get to a large control panel overlooking the courtyard. Press A, and the last objective of "Eliminate Von Schrader and Disable the Dirty Bomb" will be completed and the mission will be over.
Free Medkits
You will receive a free medkit at the end of every level for each surviving member of your squad.
Free Revives
You will earn one revive at the end of a mission for completing all mission objectives.
Hidden grenades in Escape To Dawn
When your on the last level of the first attacks and the Panzer comes through the wall, let it blow up the mini houses. When they are blown up, get the grenades in them. If you get enough of them, you can blow up the Panzer. Keep throwing the grenades; it takes awhile.
Last mission: Von Schraders journal
On the last mission, you will have to find Von Schraders journal. It is not located in the bunker where Von schrader is found. It is located in the trenches at the bottom of the steep hill with the tank on top of it that gets blown up by the planes. It is directly below one of the gun emplacements in those trenches.
Mission 1: Easy completion
In the beginning of the first level, charge up to the Nazis and shoot with your machine gun. A soldier will shoot at you; ignore him. Go to the far right and down some stairs. Walk up to your captain. If you still have ammunition, more Nazis will appear. Shoot them, then run back to your ship to complete the first level.
Eliminate Klaus Mueller
Find V2 Rocket Fuel Specifications
Locate and destroy Anti-aircraft Gun
Destroy Shore Gun
Capture German Bunker
Return to HMS Cambeltown
St. Nazaire: Lights Out In the Port City
Primary objective: Destroy Power Plant
Secondary objectives:
Eliminate German Infantry Unit
Destroy 3 V2 Rocket Hull
Locate and Destroy German U-Boat
Eliminate Horst Benner
Uncover V2 Rocket Equipment Blueprint
St. Nazaire: Escape at Dawn
Primary objective: Escape to French Countryside
Secondary objectives:
Destroy Machine-Gun Nest
Eliminate Erich Kostor
Destroy Radio Tower
Obtain North African Shipping Manifest
Eliminate Panzer Tank
Reload M1 Garand without shooting out all of the clip
Normally, you cant reload the M1 Garand without shooting out all of the shots. To reload it without shooting all of your shots out, you just need to be near a weapon on the ground. All you need to do is switch it to the gun on the ground than switch it back. It will have a full clip! But it will subtract the amount of shots needed from your total ammunition.
Using mounted machine guns effectively
There are mounted machine guns that you can use to shoot Nazis. This is not easy and is also risky because you are shooting from a fixed position and cannot duck or hide. To get around this problem, send your squad directly next to the machine gun. They will use it instead of you and effectively mow down any enemies that are near by.
Von Schrader's journal in final mission
In the final mission, you will have to find Von Schrader's journal. It is not located in the bunker where Von Schrader is found. It is located in the trenches at the bottom of the steep hill with the tank on top of it that gets blown up by the planes. It is directly below one of the gun emplacements in those trenches.