So i recently completed all four games on legendary. Unfortunately, it says i didnt finish a few missions on Halo 1 and Halo 3, despite saying i completed them solo on legendary. I dont know whats going on but could anyone help me figure out why i didnt get these? Im trying to get the helioskrill armor but i cant get it without the legend achievement and i sure as hell am no doing halo combat evolved on legendary again.