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