I don’t think that this cheat would really work, but I am going to post it up here in case it actually does. If anyone has Call of Duty 2 and can test this out, and let me know…I would appreciate it.
When in a pregame lobby of Xbox Live press the following buttons:
Up , Down, Down , Down, RT
Also, not really a cheat, but a kill requirement built into the game is that:
Head shots are instant kills and body shots require two or more shots for a kill.
Unlock All 1000 Achievement Points for Xbox Live
Complete the following objectives to unlock the corresponding points. If you completed an objective, the points will be added to your Xbox Live gamer score.
Complete Training: 50 Points
Complete Crossing the Rhine on Veteran: 60 Points
Complete D-Day on Veteran: 60 Points
Complete El Alamein on Veteran: 60 Points
Complete Fortress Stalingrad on Veteran: 60 Points
Complete Hill 400 on Veteran: 60 Points
Complete Rommel’s Last Stand on Veteran: 60 Points
Complete Stalingrad 42 on Veteran: 60 Points
Complete The Battle for Caen on Veteran: 60 Points
Complete The Tank Squadrons on Veteran: 60 Points
Complete The Winter War on Veteran: 60 Points
Complete the Game: 150 Points
Complete the Game on Hard or Veteran: 200 Points
At the mission selection screen, hold LB + RB and quickly press D-pad Left(x2), D-pad Right(x2), Y(x2).
You will first need to find the gun for which you would like unlimited ammunition. This trick will only work for one type of gun. After you have chosen a gun, find the exact gun on an ally or enemy, then kill him. After he is dead, his gun will appear on the ground. When walking over the gun it will say you have received that weapon’s ammunition. If you have full ammunition, waste a few shots then pick up another of that same gun. However, this time the gun will stay on the ground. You can keep walking over the same gun on the ground repeatedly for more ammunition each time.
Completing Veteran mode
In Veteran mode, your life expectancy is cut to three or four shots until you die. However, Veteran mode does not improve the enemy’s aim or strategy. Use small blocks or small bulges of hills as cover and crawl, because you do not get points for kills, so do not take the Nazis head on. Let your allies lay some fire, if there are any. If not, throw a smoke grenade and shift between crouch and crawl positions, laying cover fire and stall some time for the smoke grenade to spread before the Nazis rush in. Use this smoke cover to fall back to the nearest safe position where you can regroup or hide and pick the Nazis off from afar.
Determining if enemies are still alive
Even after you shoot the enemy, he may still be alive. Make sure to aim your crosshairs at him and see if it turns red. If it does, it indicates that the enemy is still alive, and you must shoot him again. Do not give the enemy the chance to shoot you from behind while he regains consciousness.
Determining grenade danger
The grenade indicator is useful, however, you do not have to run away from it every time. If the indicator points that a grenade has landed near you, but you are taking cover behind a wall, you do not need to run away. Instead, the grenade will explode and not damage you at all.
Mission Select Screen Reset Glitch
If you went through the game then returned to do your Veteran Achievements and a glitch in the game reset your mission select screen, enable the “Level select” code and choose the missions that you have not done yet for the Veteran Achievements. You will not be penalized for using the code. However, you must re-complete the missions you already have the Achievements for to get the “War Hardened” Achievement.
Let me know if any of these cheats do not work. Also, if I am missing any cheats, please contact me and let me know.