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