I know it's not a space shuttle but I reckon a jet is more in keeping with a military unit, and it looks close enough to a shuttle, especially after the modifications I made to the tail assembly.
This is a KO of what I think is a legends Universe Starscream. A Cybertron Soundwave was suggested as a mold but I reeeeally don't like that figure and thought it would still be too recognisable as Soundwave.
I couldn't change the head because it's an integral part of the transformation.