Stand in the position that my crosshair is pointing at.

Then aim at the lower right corner of the first beamer, that comes out of the wall, and jumpthrow.
It also blocks the sight of standing on the wheel of the trailer.
Result:

Stand in the position that my crosshair is pointing at.

Then aim at the dark dot, and move your mouse inbetween it and the white line coming upwards from the brick wall below.
Result: