2,000 smoke grenades
While playing hit R1, Circle, R2, L2, Square
The Island mission: Best gun early
On the second mission, "The Island", there will be a man
under the second bridge with a FG42 scoped. That gun will get more
ammunition every time you kill someone. The gun starts with 96 ammo
remaining and you can kill about 150 people with it (not including
melee). After completing that mission you will have that gun on the
third mission, but you must save the gun through the third mission
to get it in the fourth mission and so on.
All levels
At the chapter selection screen, hold Select and press Right(2), Left(2),
Square(2) to unlock all levels and bonus content. Submitted by Alex Rox
All bonuses and chapters
Enter at the Chapter Select Screen and hold Select and press Right, Right, Left, Left, Square, Square at the chapter selection screen.
Completion bonuses
Complete the game to unlock interviews with veterans Gordon Boulton, Sgt. John D. "Bud" Hawk, and Sgt. Stan Markut.
The Mace mission: Scoped FG42
When you get to the part where you must keep the Nazis from the trenches, do not listen to the men. Go to the right and follow the path. You will find an FG42 scoped leaning on a crate.
Night Drop mission: Easy completion
When you meet up with the French rebels you will have a choice to go left to the Flak 88s or go through the house to
the right. Go left to the guns. Kill all the Nazis around the gun and in the ditch leading to the next gun.
Then, blow up the 88 and move on to the rest of the guns. After you blow up all the guns you will reach the
house that you would have had to take if you went right. When you go in the house you must defeat a Nazi that
is standing there waiting for you. Kill all the enemies in the house and fall through the burning floor. You will see you allies there waiting for you.
The Mace mission: Scoped FG42
When you get to the part where you must keep the Nazis from the trenches, do not listen to the men. Go to the right and follow the path.
You will find an FG42 scoped leaning on a crate.
Move friendlies
In order to move your friendlies, use ADS and aim at them. Then, press fire. Do not worry, as you cannot shoot at a friendly.
Your friendly should move from his location. This is useful when you are trying to enter an area blocked by a friendly.