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