11 days until...

# Jorge is the first spartan of noble team to die. He dies blowing up a covenant ship.
# Kat is the second spartan that dies right after the city gets nuked. She gets sniped in the head.
# You backtrack again.
# Cortana chooses Noble 6
# Noble 6 delivers Cortana to captain Keyes
# Third spartan to die is Carter he kamikazes into a scarab
# Fourth spartan to die is Emile he gets stabbed with an energy sword by an elite
# Noble 6 dies trying to fight off the covenant
# Keyes ends up at the first Halo where the first game started

☆☆☆☆☆☆☆☆????

That's what happens in the halo:reach's campaign