Edit: Thanks to masterofp in the comments. There is also a forklift on the left side of the map that actually drives towards you, so this one may be easier to hit.
At the start, if you look as far right as you can, to the right of the other ship in another shipping yard, a forklift will periodically speed around. You have a relatively small window to hit it and it's a good distance a way, so gently press
to focus and slow time so you can line the shot up easier.
Aim a little bit ahead since it takes a while for the bullet to reach it. It might take a few attempts, but isn't that hard.