The Big One is an achievement/trophy in GTA 5 unlocked after completing the sixth and final heist mission.
This is one of the secret achievements that unlock automatically during the storyline gameplay. The Big Score is the 69th mission in chronological order.
|Name||The Big One|
|Description||This ain't no dream no more.|
|Trophy Type||Bronze Trophy|
To unlock The Big One achievement in GTA 5, the player has to simply complete the heist mission “The Big Score”.
The Big Score is the final heist of the game. In this mission, the protagonists rob the Union Depository. This heist has two approaches which the player can choose from, the Obvious Approach and the Subtle Approach, having three and four setup missions respectively. Either approach can be chosen to receive the trophy.
The trio manages to steal exactly 672 gold bricks, since when Casey is paid off (Subtle), $300,000 is deducted from the take, indicating that each brick is worth $300,000. 201,600,000 divided by 300,000 is 672.
If the player takes too long deciding which approach to go by during the set up scene, Trevor will accuse Michael of "milking it".
In the Obvious approach, if the player looks closely, they can see that the train the crew uses to transport the gold has no engineer.
A. To unlock The Big One achievement in GTA 5 the player has to complete the heist mission “The Big Score”.
A. Any approach of The Big Score unlocks “The Big One” trophy/achievement after completing the mission.