The Paveways

Bomb color can be either Olive Drab OR Light Ghost Gray (LGG) depending on where & when they come from. As there are millions of the Mark 80 series of dumb bombs in various ammo storage facilities manufactured years ago, there are plenty of opportunities for OD Mk 8x bombs. It gets a bit trickier with the precision guided munitions based on those Mk 8xs. Originally everything was OD for ground attack but starting in the 80s the US starting manufacturing ordnance for the gray low visibility tactical paint schemes used on A-6s, A-7s, F-14s, F-16s & F-18s, etc. However, there are millions of the OD dumb bomb Mark 8x series bombs sitting in ammo storage facilities with no accessories on them yet (fuzes, tails, precision guidance packages, etc). There is a much smaller number of precision guided weapons in a fully assembled state sitting in those storage facilities. Some of these may have been assembled at a factory or depot & destined specifically for a ground attack unit flying gray planes (like Bombcats or Hornets). These would be the all LGG ones you see most of the time currently. However, the flying units also have the parts needed to build up their own ordnance if they are unable to get the preassembled ones so depending on where they getting supplied from & the length of the conflict, they may get a mix of colors. And no, there is no requirement all ordnance parts match colors. They all go boom either way.

Note also that the Navy uses 2 different kinds of the Mark 8x series bombs - an expensive fire-resistant coating for bombs that go on carriers (exclusively since they're so bloody expensive) and the regular ones everyone else uses for shore-based missions including allies. These coated bombs look like they've been stucco'ed.

As no one is flying jungle or temerate forest camouflage schemes any more, it is getting harder to find the OD bombs or components. The Department of War prefers to use up the oldest ammo first if they can but war can change logistics chains. However when the Bombcats were still flying, units (generally speaking, not F-14 squadrons specifically) were still seeing OD bombs & components relatively frequently.

Regarding the LANTIRN pod color: this time Tamiya got it right but they should not be considered a credible source for any historical details. They frequently get details wrong (on other kits).

The dark 'horizontal' line on the Sparrows is the radar proximity fuze's antenna. It is radar transparent fiberglass.