Halo 3: Complete three Halo 3 playlists. - Halo: The Master Chief Collection
Halo 3: Beat the par score on Cortana. - Halo: The Master Chief Collection
Halo 3: Complete every level of the game on Heroic difficulty. - Halo: The Master Chief Collection
14,529/25,5184,915/7,000548/700
2,276/2,929800/1,00011/13
339/7,426150/1,00011/36