This jump involves simply gaining speed and going up the ramp. You should be
standing the whole time (not crouching). No jumping is invloved. Try to attack
the ramp straight-on, not at an angle. However, you should be looking sideways
and sprinting as you go up the ramp. To start the jump, stand on the trim which
is on the left wall. Start sprinting towards the right wall. Once you have reached
running speed, start pointing your mouse towards the ramp. As you begin arcing
in the direction towards the ramp, move your mouse further left, so that you
are always facing sideways with respect to the direction you are moving in. By the
time you hit the ramp, you should be looking at the left wall.