Melissa
Melissa is an Artificial Intelligence construct created from Yasmine Zaman's brain. Yasmine "washed out" of the Spartan-II training program at age fourteen, dying during augmentation. Melissa became the AI of the ONI stealth ship Apocalypso. Melissa was infected by a devastating Covenant program buried in a larger transmission. When the Deep-Space Artifact created a Slipspace explosion on return to Earth, she was blown apart, with some parts being transmitted to Earth of the present and others being thrown back in time to the Earth of the early 21st century.