Here is the full list of all 30 After the Fall achievements.
Eliminate a total of 53600 Snowbreed
Win a Tundradome match
Lose Tundradome match
Clear Quarantine Center on Nightmare Difficulty
Clear Union Tower on Nightmare Difficulty
Clear Chinatown on Nightmare Difficulty
Clear Skid Row on Nightmare Difficulty
Collect 500,000 Harvest
Make it to The Line
Eliminate a total of 10000 Snowbreed
Collect 100,000 Harvest
Get 100 eliminations with an SMG
Get 100 eliminations with the MT47
Get 100 eliminations with a Shotgun
Get 20 consecutive critical hits in a row
Re-activated the Relay tower
Get 100 eliminations with the Assault Carbine
Heal a fellow Runner
Get 100 eliminations with an Arizona Falcon
Clear Quarantine Center
Eliminate a total of 1000 Snowbreed
Collect 10,000 Harvest
Clear Union Tower
Clear Chinatown
Get 100 eliminations with a Pistol
Clear Skid Row
Eliminate a total of 100 Snowbreed
Heal yourself with a juice boost
Eliminate a total of 10 Snowbreed
Eliminate your first Snowbreed as a Runner