Complex sentence: They wore ordinary field-gray uniforms rather than the black of the Panzer troops; those panzerjäger troops who crewed the tank-destroyers however wore the Panzer jacket in field gray.
Split into simpler sentences: They wore ordinary field-gray uniforms rather than black of the Panzer troops. Those panzerjäger troops who crewed the tank-destroyers however wore the panzer troops uniform in field gray.