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