Here is the full list of all 38 Culture Warz: Time's Up Karen! achievements.
Kill 100 Zombies
Kill 500 Zombies
Kill 1000 Zombies
Kill 10000 Zombies
Kill 100000 Zombies
Kill 1 Boss Zombie
Kill 5 Boss Zombies
Kill 10 Boss Zombies
Kill 20 Boss Zombies
Kill 40 Boss Zombies
Survive 1 wave
Survive 5 waves
Survive 10 waves
Survive 15 waves
Survive 20 waves
Survive 25 waves
Survive 30 waves
Blow up a barrel
Pick up 5 guns
Pick up 10 guns
Capture one flag
Capture 10 flags
Capture 50 flags
Use 1 Support Power Up
Use 5 Support Power Ups
Use 50 Support Power Ups
Collect 100 Tagz
Collect 500 Tagz
Collect 1000 Tagz
Collect 10000 Tagz
Survive for 5 Minutes in Survival
Survive for 5 Minutes in KOTH
Survive for 5 Minutes in CTF
Survive for 5 Minutes in Tagz
Travel 10km
Travel 50km
Travel 100km
Travel 1000km