Here are some simple single player tips, tricks, and cheats for the Call of Duty 4 single player mode on PC.

Start up Call of Duty 4 single player, go into your options, and make sure that the console is enabled.

Press your ~ (tilde) key anytime you want to enter these codes in - you can keep entering them.
First off, type seta thereisacow "1337", this enables most of the cheats.

In order to pick a level, use spdevmap mapname

Here are some handy console commands that may help you through the game:

  • ufo - you can fly through walls to get places - be careful, this can mess things up a little, and you may get stuck
  • give - gives you an item. If you type give all, you will get all weapons
  • god - god mode!
  • demigod - god mode, but some things still happen like screen shaking and such
  • notarget - you will be invisible to enemies
  • give ammo - instant ammo
  • jump_height - allows you to change the physics in the game - like moon shoes
  • timescale - let’s you play with time - fast or slow
  • cg_LaserForceOn - laser sight, baby!