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