The Hotline Miami Add-on for PAYDAY 2 has 12 achievements.
In day 2 of the Hotline Miami job, reach the Commissar's apartment in under 210 seconds on the OVERKILL difficulty or above. Unlocks the "Rasmus" mask, "Tactical Foregrip" and the "Ergonomic Stock" for the Uzi submachine gun, "Chromescape" material and "Palmtrees" pattern.