Mastermind

"GTA Online: Earn 25 platinum medals across Heist Setups and Finales."

- In-game description

Mastermind is an achievement/trophy in Grand Theft Auto Online, added as part of the Heists Update.

Acquisition
This achievement/trophy is unlocked after earning 25 platinum Awards across Heist Setups and Finales. Awards can be tracked in the Stats section of the pause menu.