for NG+, when it'll be a category.

I myself have done everything except for races and skydive. Since I got nothing (IIRC) from golding all Combat Tours and Bomb Tours, I assume completing the above also gives nothing. If it's true, then I can provide my own save file.

There's no complete save file on the internet at all. All I can find is a save file with all missions complete with both characters.