Sidetracked is a pre-Heist Mission in IGN's Grand Theft Auto 5 Walkthrough. This guide will highlight the main mission strategies and Gold Medal requirements needed to complete every main story mission. Check out more of IGN's GTA5 Walkthrough for info on Cheats, Easter Eggs, Strangers and Freaks and a lot more.

Drive up to the waypoint at the Davis Quarry and get within a safe distance where you'll see two workers at the train tracks. To get the Gold requirement, you'll need to subdue the two workers quickly. You can try going for Stealth attacks on both men but this will increase only mission time, so go for the Sniper Rifle option instead.

With the coast cleared, go up to the tower and manipulate the rail controls. From there, wait for the train to pass by and then switch to Michael.

Fly the Skylift chopper towards the quarry and find the stopped train car. Line up gingerly from the back of the train, fly low, and use the electromagnet key the moment it becomes available. Climb quickly, make your way to the trailer at the airfield, and reverse the process. Be patient and try not to overcompensate, using your tail to rotate.

Return and grab a flatbed car using the same method. Drop off the flatbed car on a second trailer at the airfield to complete the mission.

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