Hidden Dialogue

• In the second level or map of Call of Duty 1, called Burnville, there is way for you to hear a hidden phrase, which is said by a fellow soldier. According to CheatCC.com, when you are directed to go into the church and shoot at a pair of machine gunners and group of antiaircraft gunners, you should bypass these instructions and instead stay behind the large tomb that has a crucifix on it. Then you must and throw grenades at where the gunners would be located--you won't be able to see them--which can be done by aiming at the corner of where the two walls in front of you meet. If you continue to throw grenades, a fell soldier will eventually say to you "Way to chuck, private."
  
  

Cheat Codes

• There are a number of options that you can turn on and off in Call of Duty 1 through entering in various cheat codes. According to CheatCC.com, to be able to enter in these codes, you must open the game with the command line parameter "+set thereisacow 1337 +set developer 1 +set sv_cheats 1 +set monkeytoy 0" set in. You can do this by right clicking the game icon on your desktop and selecting properties, and then adding the above quotation to the end of the target text, making sure it is within the target quotation marks.
  
  Once you are playing the game, pressing the ~ symbol will open up a window where you can enter in codes to activate game options. Entering the same code again will deactivate the option. Some of these codes include typing "god" for invincibility, "give health" for full health, "give all" for receiving all items, "give ammo" for receiving extra ammunition, "ufo" for flying mode, "no clip" for no clipping mode, "no target" for ignored by enemy mode, and "map [map name]" to play a specific map.
  
  The following are all the possible game map codes: airfield, berlin, brecourt, burnville, carried, chateau, dam, dawnville, factory, hurtgen, pathfinder, pavlov, pegasusday, pegasusnight, powcamp, railyard, redsquare, rocket, sewer, ship, stalingrad, tankdrivecountry, tankdrivetown, trainstation, training, truckride.