You can also use the thermal scope during the day to clearly distinguish vehicles and soldiers.
Game Shark Codes
Master Code (Must Be On) 0E3C7DF2 1853E59EEE9C3576 BCCBF7D2
All Medals Mission 1-1 CEA8CE5A BCA99B94
Unlock Mission 1-2 CEA8CE6E BCA99C84
All Medals Mission 1-2 CEA8CEDE BCA99B94
Unlock Mission 1-3 CEA8CEE2 BCA99C84
All Medals Mission 1-3 CEA8CD52 BCA99B94
Unlock Mission 1-4 CEA8CD66 BCA99C84
All Medals Mission 1-4 CEA8CDD6 BCA99B9C
Unlock Mission 1-5 CEA8CDDA BCA99C84
All Medals Mission 1-5 CEA8CC4A BCA99B7C
Unlock Mission 2-1 CEA8CC5E BCA99C84
All Medals Mission 2-1 CEA8CCCE BCA99B9C
Unlock Mission 2-2 CEA8CCD2 BCA99C84
All Medals Mission 2-2 CEA8C342 BCA99B94
Unlock Mission 2-3 CEA8C356 BCA99C84
All Medals Mission 2-3 CEA8C3C6 BCA99B9C
Unlock Mission 2-4 CEA8C3CA BCA99C84
All Medals Mission 2-4 CEA8C2BA BCA99B74
Unlock Mission 3-1 CEA8C24E BCA99C84
All Medals Mission 3-1 CEA8C23E BCA99B9C
Unlock Mission 3-2 CEA8C2C2 BCA99C84
All Medals Mission 3-2 CEA8C1B2 BCA99B9C
Unlock Mission 3-3 CEA8C146 BCA99C84
All Medals Mission 3-3 CEA8C136 BCA99B9C
Unlock Mission 3-4 CEA8C13A BCA99C84
All Medals Mission 3-4 CEA8C0AA BCA99B74
Unlock Mission 4-1 CEA8C0BE BCA99C84
All Medals Mission 4-1 CEA8C02E BCA99B9C
Unlock Mission 4-2 CEA8C032 BCA99C84
All Medals Mission 4-2 CEA8C7A2 BCA99B94
Unlock Mission 4-3 CEA8C7B6 BCA99C84
All Medals Mission 4-3 CEA8C726 BCA99B9C
Unlock Mission 4-4 CEA8C72A BCA99C84
All Medals Mission 4-4 CEA8C69A BCA99B94
Unlock Mission 4-5 CEA8C6AE BCA99C84
All Medals Mission 4-5 CEA8C61E BCA99B7C