Never touching The Brute Force file ever again. Finally got all 3 challenges done for all files for career progress after many attempts at that specific file.

The "Enter Area A without being detected" challenge is stupid because seemingly no matter what I did to do that I was still spotted by the guard in Area A before I could even enter.

Decided to run it one last time, literally just ran into the room towards the right side of the room, alarm went off and I wasn't sure if I got the challenge until the mission end screen.

Such a stupid challenge Rockstar.

This game doesn't have good stealth mechanics at all.

Edit: don't see how it wasn't clear, I got all 3 challenges done for the file.