Here is the full list of all 40 Atom Zombie Smasher achievements.
Defeat Wave 7 in the KringleJammer mini-game.
Rescue 40 or more people in one helicopter pickup.
Unlock all the vignettes.
Complete a 20,000 point campaign.
Complete a mission with 3 players.
Complete a campaign with the Triplets modifier.
Complete a campaign with the Hardcore and Permadeath modifier.
Complete a campaign with the Alt. Spawning modifier.
Cleanse four Zed territories with one Llama Bomb.
Purchase a Llama Bomb.
Complete a level-3 outbreak mission.
Rescue 300 people in a mission.
Destroy 50 Zed in one artillery strike.
Rescue 200 people in a mission.
Get 100 artillery kills in a mission.
Have a merc reach Level 5 veterancy.
Use snipers to destroy 100 Zed in a mission.
Get 100 landmine kills in a mission.
Complete the campaign.
Rescue everyone in a mission.
Complete a level-4 outbreak mission.
Destroy a Mega Zed.
Get 100 infantry kills in a mission.
Rescue 100 people in a mission.
Destroy all Zed in a mission.
Survive the night.
Accrue 10,000 sniper kills.
Accrue 10,000 infantry kills.
Accrue 10,000 artillery kills.
Accrue 10,000 landmine kills.
Accrue 10,000 dynamite kills.
Launch 500 Llama Bombs.
Accrue 500 gold medals.
Complete a mission under 30 seconds.
Rescue 100,000 people.
Rescue 10,000 scientists.
Destroy 50 Zed in one dynamite explosion.
Destroy 50 Zed in one landmine explosion.
Get 100 dynamite kills in a mission.
Rescue at least 100 people in July.