Cheat Codes...
	Various Steam Achievements...

To enter console commands, press "~" and type in "sv_cheats 1" in the command window. This will allow console commands to be entered. Please note that this will disable steam achievements.

Effect	Code
Activate/Disable Fly	noclip
Delete Zombies	remove_all npc_zombine
Disable Blood	violence_hblood 0
Disable HUD	hidehud 5
Disable Jump	sv_gravity_0
Earthquake	shake
Easy Mode	ai_disable
Enable Jump	sv_gravity_1000
Enable/Disable Edit Mode	editor_toggle
First Person Mode	firstperson
Freeze Corpses	cl_phys_timescale 0.0
God Mode	buddha
Kicks all Bots	bot_quota 0
Reenable HUD	cl_drawhud 1
Refill all Ammo	impulse 101
Spawn Airboat	ch_createairboat
Spawn Ammo	givecurrentammo (number)
Spawn Health	give item_healthkit
Spawn Jeep	ch_createjeep
Spawn Skull	impulse 102
Spawn Zombie	ent_create npc_zombine
Suicide	die
Third Person Mode	thirdperson

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Arsonist	Cleanse 500 infected with fire.
Bean Counter	Cure 10 or more infected with a single grenade.
Captain	Complete any official mission on average without dying.
CEO	Complete Office on insane.
Citizen	Complete Cityblock on average or higher.
Clerk	Complete Office on average or higher.
Colonel	Complete any official mission on insane without dying.
Conservationist	Complete any official mission without using a primary weapon or equipment on skilled or higher.
Foreman	Complete Flatline on insane.
Healer	Provide your team with 2500 total health.
Hermit	Complete Bunker on insane.
It's How You Use It	Cure 250 infected with the MP5k.
Just Following Orders	Cure 10,000 total infected.
KDR	Cure 100 infected in a single life.
Lieutenant	Complete any official mission on casual without dying.
Major	Complete any official mission on skilled without dying.
Mayor	Complete Cityblock on insane.
Mean Left Hook	Cure 150 infected with your fist.
No-one Left Behind	Cure 250 infected soldiers.
Point Duty	Cure 500 infected with the XM1014.
Pump Action	Cure 250 infected with the M3.
Quicker Than Reloading	Cure 500 infected with pistols.
Spray 'n' Pray	Cure 500 infected with the Galil.
Supreme Sacrifice	Take 5 or more infected with you in a grenade suicide.
Surgical Precision	Cure 400 infected with the PSG1.
They Took Our Jobs	Cure 500 infected with the sentry gun.
Underground	Complete Bunker on average or higher.
Unfriendly Fire	Complete any official mission with no friendly fire incidents on skilled or higher.
Veteran	Conplete 100 successful missions average or higher.
Work Force	Complete Flatline on average or higher.