Full list of all 1328 PAYDAY 2 achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 691 achievements, and there are 57 DLC packs containing 637 achievements.
On the Prison Nightmare job, get on the train in less than 4 min and 44 sec on the Mayhem difficulty or above. You have to have played the heist from the start. Unlocks the "Risen Wolf" mask.