In order to activate the cheat codes you need to create a shortcut from the MOHAA executable (.exe) icon. The default location is C:\Program Files\EA GAMES\MOHAA. Right click on the short cut and click on the Properties tab. Delete the existing target line and replace it with the following...

"c:\program files\ea games\mohaa\mohaa.exe" +set developer 1 +set thereisnomonkey 1 +set cheats 1 +set ui_console 1

Start the game by clicking on the shortcut icon. Once you're in the lobby click on the Advanced options menu in the stack of radios on your left. Turn on the Console option. Press the "~" key to bring down the console and you're ready to go!

The Cheats:
~wuss - Gives player all weapons

~dog - God Mode

~fullheald - Heal player

~notarget - Removes target

~noclip - No clipping

~listinventory - List of the player's inventory

~tele x y z - Teleport to location

~coord - Prints out current location and angles

~health - set current health

~kill - Kills the player

~giveweapon weapons/''weapon_name''.tik - Gives the player the specified weapon

~toggle cg_3rd_person

~maplist - brings up a list of all levels, click on the one you want to play