Here is the full list of all 31 Zombie Kill of the Week - there are Reborn achievements.
Go see your friends!
Get promoted to rank 30.
And still going?
Kill 15 zombies with a katana, and 25 with saw in one match.
You have wasted 5 hours of your life.
Get a shotgun, and make 20 zombies crawl in front of you.
Survive 4 minutes in Homerun. (Challenge mode)
Survive 4 minutes in Area 73. (Challenge mode)
Slaughter 10 000 zombies in total.
Survive 4 minutes in Arise. (Challenge mode)
Survive 4 minutes in Night At The Mall. (Challenge mode)
Survive 4 minutes in RedSnow. (Challenge mode)
Survive 4 minutes in Abandoned Hospital. (Challenge mode)
Get the GiGaGirlGannon, and kill 10 zombies within 10 seconds.
Own atleast 5000$ in one match
Get 5 meats in a single game from the fridge.
Slaughter 5000 zombies in total.
Encounter all 3 tanks, and get them killed.
Find the fridge and make it disappear. Repeat 3 times.
Get yourself killed with a grenade. Dumbass.
You have played ZKW for an hour.
Slice 53 zombies in one match.
Fight your way to round 20.
Grill 50 zombies with flame in a single match.
Open all areas in a single match.
Stand still for 30 seconds, wondering about your life.
Kill the zombie bear before he takes your money.
Get promoted to rank 10.
Get 100 headshots in one match.
Help your friend in need.
Zombies are not ment to fly.