Here is the full list of all 31 SPRAWL achievements.
Complete E2M2
Pick Up The Railgun
He gave me a flower one day
Are you Pythia too?
Complete E2M1
Pick Up The Chaingun
Complete E1M5
He Shot You, You Killed Him
He is charming is he not?
Kill A Mech, Take His Gun
What will you do next?
Played your own tune on the decks
Complete E1M4
Complete E1M3
I know how it ends
Complete E1M2
Manus Celer Dei
Pick Up The Double Barrel Shotgun
Complete E1M1
Pick Up The SMGs
Do you think you are free?
Complete E2M3
Complete E2M4
Complete E3M1
Complete E3M2
Complete E3M3
Pick Up The Rocket Launcher
Do you like your new toy?
100,000 years
Know he's with me
It was always about you