For me the death of Noble 6 stood out the most. Having played Halo CE and read the Fall of Reach, the start of the last mission with the objective lighting up "Survive" really got to me because I knew what was coming. The environment and the music created such a somber atmosphere. I desperately tried to survive, hoping for a miracle to save Noble 6; That miracle never came. Noble 6 went down like a champion though. The speech at the end gave me goosebumps.