The Big Con Approach is not only super efficient (given the perilous nature of GTA Online), but it's also quite fun. It allows the player to infiltrate the casino in disguise. This approach, too, helps the player avoid unwanted attention and keep a low profile, which is always helpful in GTA Online.

10 Tips on Getting the Maximum Payout in GTA V Casino Heist

1
Always Choose the High-Level Buyer. To get the most gains from the heist, it's highly advisable to sell the plundered goods to a High-Level Buyer. ...
2
Gunman. ...
3
Driver. ...
4
Hacker. ...
5
Secret Vaults. ...
6
Number of Heist Members. ...
7
Duggan Shipments. ...
8
Kill Effectively.