Actaully, I found out that the REAL alternate was should have to do something with noble six's helmet and hawk. Hawk sits on Noble Six's crashed helmet on a pole and Hasley narrates EXTACT same words that she narrated at the orginial ending. Plus, I have it in a picture and i found this cool theory in halo wiki. Bungie was suspposed to put that alternate ending into game's alternate ending if you finished the last mission with legendary. The another second alternate ending was suspposed to be noble six's shattered helmet at the beach. Noble Six's helmet lying on the sand aside of the ocean. Hasley will explain what they did with Master Cheif and Cortana. They'll explains about first halo, blah blah blah. It was suspposed to be second alternate ending if you finished the last mission on legendary AND have all 12 skulls on, just like Halo 3 alternate ending! THIRD ALTERNATE ENDING is unknown, but i've heard that it probablly unlock alternate ending if you gathered ALL DATA PADS. ** spoiler ** I've read the last data pad on lone wolf mission and I relaized that MAYBE MASTER CHIEF WROTE THEM. I dubot it..... **spoiler ends.** Bungie didnt put this alternate ending... :(