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