"Go to the rail bridge" is an objective in the story mission Derailed in Grand Theft Auto V.
Walkthrough[edit]
Trevor is now driving the train. The controls are shown for a while in the top left of the screen. You can look around, brake or accelerate. They are much the same as in a car ... just this one weighs in at a few hundred tons. Once you pass through Paleto Bay, the stage is set for the fun. The scene will change from Trevor over to Michael.
As Michael you need to gun on underneath the first bridge and onto the second one just beyond it. Once you hit the marking things go smash and boom.
