


A cutscene will show the manager requesting an authorization ID. Drive to the Union Depository building's underground garage, and they will park the Securicars in reverse. They will be forced to ride in the vans in order to support them. Another van will appear, and requested to change the tires. The occupants will be forced to get out of their vans as hostages. Get out of the car and start aiming at the windows of the vans. The vans' tires have deflated and stopped. Drop a Spike Strip or Stinger before the vans leave, then drive away and wait for them to hit the spikes. After getting to the tunnel, wait for two Stockades to enter the tunnel. The time is shown on the lower right corner of the screen. The mission can be carried out in two ways - a "subtle" approach, consisting of "asking for the gold", loading trucks with the gold and fleeing the city in tuned muscle cars, or an "obvious" approach, requiring the team to drill into the vault, break out with the gold, and fly out of the city with helicopters. The last one, Getaway Vehicle, involves parking a vehicle in a parking lot near the Union Depository.The second one, Sidetracked, involves stealing a train using a Skylift.The first one, Driller involves stealing a Cutter from a warehouse.The last three, Gauntlet, require the player to steal three Gauntlets around Los Santos and modify them at Los Santos Customs.The first one, Stingers, involves stealing a van equipped with spike strips.The preparation missions varies based on the chosen approach in Planning the Big Score.

In order to perform the heist, the protagonists must perform a couple of side-missions ( Heist Setups) to get the necessary equipment.
