Here is the full list of all 25 Containment: The Zombie Puzzler achievements.
Kill 10,000 Zombies
Kill 5,000 Zombies
Open 20 vehicles.
Complete all 20 blocks in Town Hall Survival
Kill 1,000 Survivors
Complete all 10 blocks in Graveyard Survival.
Complete the campaign
Complete Act 3 by defeating the boss without the forklift.
Kill 500 Survivors
Complete Act 2
Kill 1,000 Zombies
Surround 20 zombies at once.
Kill 5 non-Zombies with a single grenade.
Kill 100 Survivors
Kill 8 or more survivors with a single air strike.
Surround 15 zombies at once.
Kill 500 Zombies
Watch America's Fighting Dinosaur at the drive-in.
Shoot 10 zombies offmap with Sniper items.
Complete Act 1
Kill 10 Survivors
Kill 100 Zombies
Apply the zombie cure to one patient. Congratulations. You created super zombies.
Witness the glory of aggressive fonts!
Kill the first zombie in the Campaign.