Watch the video very well. You will see when I click on Ranked MP then clicked again on the place where u get the legendary Kurohana DRH. Open that place but click on constructs. Check there and see which seasons grind rewards u missed previously. Activate it then start accumulating points from matches u play at legendary level to accumulate points(elite tokens)to unlock the rewards. The skins and guns(final rewards)cost 2000 elite tokens per piece, so u really have to play a lot of matches on legendary level either in BR,MP or both.
