Here is the full list of all 30 Ballistick achievements.
Use 50 ECMs
Beat "Breaking New Ground" in 75 seconds
Blow up 100 enemies
Beat "Smoke on the Water" in 150 seconds
Cock gun 100 times
Cock gun 50 times
PANDAMONIUM!!!
Beat Special Delivery in 90 seconds
Blow up 10 enemies
Take down 100 enemies
Use the noise maker 20 times
Don'ts be squealin' 'bouts my boozin!
Beat "I thought I was out..." in 30 seconds
Obligatory Beat Achievement
Kill 200 enemies
Use 1 ECM
Die in cover
Get spotted by 20 cameras
Kill 50 enemies
Take down 10 enemies
Cock gun 1 time
Take down one enemy
Kill an enemy
Out of the Steam backlog
Beat "Best Served Cold" in 60 seconds
Beat "Who's Next" in 180 seconds
Beat "Tip of the Iceberg" in 45 seconds
Beat "Bringing Down the House" in 120 seconds
Beat "Fire in the Sky" in 120 seconds
Beat "The Death of a Behemoth" in 75 seconds