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