Fixed a wing corruption zone... yet again.

Fixed a wing corrpution zone that was fudged in the previous update.

-Updated track transition scaling to be more consistent throughout the track.
-Upscaled teleporters inside broken buildings to prevent players from seemingly passing through them.
-Re-oriented some sections in an attempt to slightly reduce framerate lag.
-Slowed rotation of power rings in the final section, as the wildly fast rings were not achieving the desired effect.
-Added difficulty rating.

-Changed position of an off-centre checkpoint to be centred properly
-Changed active colouring of a power ring that didn't match the one before it
-Changed scaling of some objects to better suit the flow of the level