Your old Battlemaster is no obsolete. And neither is Champ or Cent gear. You get the new Elite Waro, rip out the mods, and put it in those older loots. Now, you are just as powerful as the new group, but you look more unique since it is something none of the new guys will be able to have. This makes it a win/win for anyone who currently has BM CHMP or CNT gear.