Saddest Deaths In the Halo Series

Most badass death. His actions actually led to humanity's victory against the Covenant.

The Chief and Cortana, one of THE best duos in all of gaming, and it is now broken. The Chief has gone through a lot in his many years of service. The risk of earth being destroyed, the deaths of Johnson and Miranda, but he always held it together and shrugged it off. But when Cortana died, Chief actually went into grief, actually questioned his humanity, on who he really was. Something he should had questioned long before. Cortana was Johns only real friend. She always held him together, always helped him through his missions, and vice-versa. Cortana was the side of chief that had been long gone, and she made a man who was pretty much machine and gave him his morals that he never truly had. She actually convinced him that he was a person rather than a puppet of the military. When she sacrificed herself for him and Earth, Chief thought he had failed his duty to protect her. But she simply says that they both did their duties, to watch for each other. - Leader342

I hated it when cortana died

Cortanas death I think took us all by surprise

He sacrifices himself for noble 6. YOU ARE NOBLE 6

He was my favourite and sacrificed himself... truly a hero