This is a guide and walk-through for The Big Con Gruppe Sechs approach in the GTA Online Diamond Casino Heist. This will show you how to get every bit of money, including from the second hidden/secret vault without losing any money. I hope it helps!
Hidden in plain sight achievement guide
#CasinoHeist #GTAOnline
Arcade Guide: https://www.youtube.com/watch?v=E0TK4V7YjFo
Beginner Guide: https://www.youtube.com/watch?v=9nvKTm5A8Gs&t=158s
Best ways to make money: https://www.youtube.com/watch?v=FsdOy1GARqs
Memes: https://www.youtube.com/watch?v=3gXh3eo7m5M&t=300s