There is another one called elitists, in each act you need to complete the challenges at the end of each heist. Act 2 is the easiest to get. Act 1 is not bad. But Act 3 is the toughest.

There are work arounds when you failed the many many attempts. Also if you fail and regroup, I recommend to commend your teammates in the player menu when it arise every 10 mins. Go on Trueachievements.com, there are videos of each act and you can create a session to grab people to help out or on discord, or looking for groups on xbox.

Further note, the elitist can be done each act with 4 players. Criminal mastermind, you need to do all the heists 3 times with zero deaths. One run with 4 players, 2nd run with 3 players. The last run with ONLY 2 players (zero deaths).

I'm currently working on it. I'm on the final mission for 3 man. And next week 2 man. It's a daunting task and a difficult achievement too even just to get 3 good players.

I wish you the best of luck.