>>8241394>do I not bother painting that part or is it good practice to still paint it?Paint it. There's a clear difference in look to paint and plastic even if the "RGB value" is the same.
>Also there are a couple of colors listed on my kit that aren't mentioned anywhere in the instructions. Are they just there if you really wanted to go the extra mile in detail?Sounds like an error in the instructions.
>the Sparrow and the Sidewinder missiles would have a bit of yellow yet the actual instructions to build those missiles doesn't have yellow listed.Those might be on the transfer sheet. If not, well, it happens that the kit/instructions skip things. It's up to you whether you think the effort to put it back is worth it or not.
>>8241665>but for example a blue stripe means an inert-warhead training missile, a yellow stripe means a proper live one, and brown means low explosive hazard (for the rocket motor)This makes it sound like you just have one stripe per missile. That is at least not usually the case. Rather, you have one for the warhead and one for the motor (the amraam tends to get two brown and one yellow even, I guess there's two motors in there). So the missiles here are fully live. Then you can have inert warhead-live motor ones (blue and brown) for training, and fully inert ones. A quick google and it seems the fully inert ones sometimes just get one stripe for it all, and at other time even more stripes to be really obvious.