Perhaps the long nose section and off-color patch is a mod (‘ShipAlt’) for a new fancy (prototype) sensor package? What comes to mind is something much like the array covers on a DDG-51 destroyer or CG-47 cruiser, or the modified/stretched noses of some fighter craft for a more powerful radar. The latter might be even more applicable if this craft is a one-off variant, never to be again...
Just a thought, YMMV.
Cheers,
-CM-
Just a thought, YMMV.
Cheers,
-CM-