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