Ironically, I'm putting down a wash on the interior and saw this. Mostly following the instructions, and it's quite an enjoyable build so far. After the wash I'll add the glass and close the fuselage!
Yes they do. Look above step 1. Basic colour would be a bluish-grey, think haze grey for crew compartments and aotake for non-crew areas (bomb bay, inside the gear wells, inside walls of the engines.).
Depends on the modeller and his build philosophy. Take the landing gear for example. A fiddly part. Someone looking for a stronger bond and more straightforward building process will follow the instructions and assemble and paint the parts, then mask them before the main camouflage colour is applied. Others, with a finer pulse and steadier hand will build the whole kit as painted sub-assemblies - airframe, landing gear, engines -, then move on to the main colours and put everything together at the very end. As I said, it depends on the modeler and how the kit is approached. Cheers.
