PAYDAY 2: CRIMEWAVE EDITION

I order to unlock this you must complete all contracts on Hard difficulty which is unlocked at level 10. This achievement is NOT stackable, so don't bother trying to skip hard.

There is an in game tracker for each level and successfully completed mission.

Bain:
Art Gallery -
Bank Heist Pro Job –
Bank Heist: Cash –
Bank Heist: Deposit -
Bank Heist: Gold Pro Job -
Diamond Store –
Jewelry Store -
Shadow Raid -
Transport: Crossroads –
Transport: Downtown -
Transport: Harbor -
Transport: Park –
Transport: Underpass -

Hector:
Firestarter -
Firestarter Pro Job -
Rats -
Rats Pro Job -
Watchdogs -
Watchdogs Pro Job –

The Butcher:
The Bomb: Dockyard -
The Bomb: Forest -

The Dentist:
Hotline Miami -
Hotline Miami Pro Job -
Hoxton Breakout -
Hoxton Breakout Pro Job -
The Big Bank -
The Diamond -

The Elephant:
Big Oil Pro Job -
Election Day -
Election Day Pro Job -
Framing Frame -
Framing Frame Pro Job -

Vlad
Four Stores –
Mall Crasher –
Nightclub –
Ukranian Job Pro Job –
White Xmas –

Escapes
Café –
Park -
Street –
Overpass –
Garage -

This achievement requires that you complete all missions on at least Hard difficulty.
> There is a total of 50 missions you need to complete.
> Can be completed online or offline, with players or solo.
> DLC missions DO NOT count towards this. They cannot be completed in place of the original 50 missions. These are listed below.
> Difficulty DOES stack, so feel free to play on a harder difficulty to save time with other achievements.
> You can check your progress in game by selecting Crime Net > Contract Broker. From here selecting a mission will display how many times you have completed it in yellow under Risk. Skull one is for Hard difficulty and it works up to Death Sentence. (Normal is not displayed here).
> Joining a mission that has already started will not count towards this achievement. You must play the mission from start to finish.

I have a Google Sheet below that I used to track my progress for this. Feel free to download and use if you wish.
https://docs.google.com/spreadsheets/d/1MwSzoI-i8rJovVQ9H14M...
When you complete a mission, fill in that difficulty, as well as all those to the left, with the number one. When the total for that difficulty reaches 50 you should unlock your achievement.
Cells coloured in grey mark that they are not required for the achievement. However, as this does stack, completing on Mayhem for example will count towards all lower difficulties.

A full list of the missions you need to complete and their contractors are as listed below;

ONE DAY HEISTS
01. Aftershock - Vlad
02. Alaskan Deal - Locke
03. Art Gallery - Bain
04. Bank Heist: Cash - Bain
05. Bank Heist: Deposit - Bain
06. Bank Heist: Gold - Bain
07. Bank Heist: Random - Bain
08. Brooklyn Bank - Locke
09. Car Shop - Bain
10. Cook Off - Bain
11. Cursed Kill Room - Events
12. Diamond Heist - Classics
13. Diamond Store - Bain
14. First World Bank - Classics
15. Four Stores - Vlad
16. Green Bridge - Classics
17. Heat Street - Classics
18. Hoxton Revenge - The Dentist
19. Jewelry Store - Bain
20. Lab Rats - Events
21. Mallcrasher - Vlad
22. Meltdown - Vlad
23. Nightclub - Vlad
24. Panic Room - Classics
25. Prison Nightmare - Events
26. Safe House Nightmare - Events
27. Santa's Workshop - Vlad
28. Shadow Raid - Bain
29. Slaughterhouse - Classics
30. Stealing Xmas - Vlad
31. The Big Bank - The Dentist
32. The Bomb: Dockyard - The Butcher
33. The Bomb: Forest - The Butcher
34. The Diamond - The Dentist
35. Transport: Crossroads - Bain
36. Transport: Downtown - Bain
37. Transport: Harbor - Bain
38. Transport: Park - Bain
39. Transport: Train Heist - Bain
40. Transport: Underpass - Bain
41. Ukrainian Job - Vlad
42. White Xmas - Vlad

TWO DAY HEISTS
43. Big Oil - The Elephant
44. Election Day - The Elephant
45. Hotline Miami - The Dentist
46. Hoxton Breakout - The Dentist
47. Watchdogs - Hector

THREE DAY HEISTS
48. Firestarter - Hector
49. Framing Frame - The Elephant
50. Rats - Hector

MISSIONS THAT DO NOT COUNT FOR THIS ACHIEVEMENT
01. Beneath The Mountain - Locke
02. Birth of Sky - Locke
03. Boiling Point - Jimmy
04. Brooklyn 10-10 - The Continental
05. Counterfeit - Classics
06. Golden Grin Casino - The Dentist
07. Murky Station - Jimmy
08. Scarface Mansion - The Butcher
09. The Alesso Heist - Bain
10. The Yacht Heist - The Continental
11. Undercover - Classics
12. Goat Simulator - Vlad
13. The Biker Heist - The Elephant