My Halo 4 ending is: After fighting for his life on the strange planet he's landed on, Master Chief must destroy a huge alien beast that has been tormenting him throughout the entire campaign. With the help of some UNSC soldiers, he weakens the alien. Unfortunately the beast evolves and becomes something more terrifying. So Master Chief sacrifices himself to destroy the beast and saves humanity. It turns out the beast thingy was actually what created the flood. How this is relevant to Halo, I don't know. But I thought it would be a friggin awesome ending(minus Master Chief dieing). How do YOU think Halo 4 should end?