Successfully complete the indicated task to unlock the corresponding achievement.

Achievement	How to unlock
1 shot, 1 kill	(Secret)
A fresh kill	Kill a human
Advancing	Kill 25 zombies
Ban Hammer	Get 280 kills with the Sledgehammer
Baseball Bat Boy	Get 80 kills with a Baseball Bat
Bon jour	Get 240 kills with the Famas
Boom-Stick Time	Get 200 kills with the Double Barrel
But it's not loaded Shaun!	Get total of 240 kills with the Winchester (Secret)
Cock that bastard!	Get 210 kills with the Remington 870
Confidence	Kill 100 zombies
DANGER: Explosive material!	Get 200 kills with any explosive material
Dangerous Eagle	(Secret)
David VS Goliath	Kill Fred
Demon Hunter	(Secret)
Dismemberment	Get 280 kills with the Machete
Double the gun, double the fun	Get 500 kills with any dual weapon
Eight 'o Glock	Get 200 kills with the Glock17 (Secret)
Escape your fate	Activate the Reality Phase special
Footsoldier	Complete 'Barracks: Arena' with 4 or more people
Get out of my swamp!	Complete 'Swamp Trouble' with 4 or more people
Getting Started	Reach level 5
Give me everything!	and you get nothing instead.. (Secret)
Gladiator	Win a match in the Arena
Guns are for pussies	Survive an entire game in Objective without using any firearms
Have a cup of tea...	And wait for all this to blow over
Heavyload	Complete 'Cargo' with 4 or more people
Helmut did a good job	(Secret)
HERE'S JONNY	Get 120 kills with the Hatchet
Hip firing	(Secret)
Hunting season	Get 150 kills with the Remington 700 (Secret)
I have plans for you!	Your first zombie kill
I LOVE MY BRICK	(no description)
I told you it was sharp	Get 35 kills with the combat knife
I wonder what's inside...	Get the briefcase
I'm a big boy now!	Reach Level 100
Is it too late to holster?	Don't throw the grenade just yet!
Is this safe?	Kill someone with a propane tank
It's very Sauer	(Secret)
John's Favrorite Little Classic	(Secret)
Kalashnikorv	Get 300 kills with the AK-74
King of the Junkyard!	Complete 'Salvage' with 4 or more people
Lastman standing	Complete 'Laststand' with 4 or more people
Left 4 Dead	Kill 20,000 zombies
Look what you did to him!	(Secret)
Machinenpistole	(Secret)
May I axe you a question?	Get 50 kills with the axe
My fist, your face	Get 100 kills with the fists
No Mercy	Complete the 'The Rooftops' with 4 or more people
Noob Camp	Complete The tutorial
Overpower	Reach level 50
Schienzel	(Secret)
Sheriff's right hand	(Secret)
Shooter Mcgavin	Get 300 kills with the HK MP7
Slippery Slide	Get 150 kills with the Beretta
Specialist	Survive an entire game in Arena without using any firearms (Secret)
Sprayer Mc'elleven	Get 300 kills with the MAC11
Standard Issue	(Secret)
The Champion	Complete 'Colosseum' with 4 or more people
The Final Solution	Reach Level 500
The Protector	Reach Level 150
The Survivalist	Reach Level 350
Time to get stoned	(Secret)
Tiny but deadly	(Secret)
Tomb Raider	Complete 'Devils Crypt' with 4 or more people
Turmoil	Complete 'Termoil' with 4 or more people
Turtle Lover	You can't stop this hump train (Secret)
Uzi the man?	(Secret)
Watch your step!	(Secret)
Where's your head at?	Get 300 kills with the G36c (Secret)
You just stay there... I'm about to...	Kill 1,000 zombies
Zombie Slaughter House	Get 12,000 kills with the Minigun