Call of Duty 2

This trick requires two players. Go to the building with the MG 42. This is the building that is not destroyed. Have one player jump on top of the MG 42. Have the other player start jumping behind him. The player on the MG 42 must face out the window. When the jumping player is in mid-air, have the other player get on the MG 42. He should be invisible but still able to shoot the turret. He will be almost invincible, requiring two or three grenades directly on him to kill him. Remember that it only works if the player is directly on top of the MG 42.

Go where the turret is in the building that is not blown up. Climb on the ledge of the turret. Look to the right and hug the wall tightly while moving forward. Once you go a very short distance onto the invisible ledge next to the shutter, run
and jump onto the roof ledge in front of you. Look to the right and jump through the shutters. You will be in a room where you can see out from, but other people cannot see you. Note: You must climb on the window ledge a certain distance to shoot out and throw grenades.

Pick up the scoped Gheher43 from the first bunker that you blow down the door to. Swap it for your Garand. It is very helpful. Every bunker has one so you do not have to worry about ammunition.

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.

Play "Crossing The Rhine" under the Veteran difficulty setting. As you play through the level, one of your final objectives will be to take out two Tiger tanks. As soon as this objective appears, or as soon as you see the tanks, very quickly make your way to the tank on your right. Plant the explosives as fast as possible on both tanks. If successful, you will notice that while the left tank is completely destroyed, the right tank is not. The right tank will appear to be destroyed, but will not have flames coming out of it and will still be able to shoot you with its machine gun. Note:The tank should also be immobilized. You will subsequently be unable to place another explosive charge on the tank, or damage it any further.