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