Serina

Serina was a UNSC "Smart" AI that was assigned to the, a modified Phoenix-class Colony Ship.

Description
On board the Spirit, Serina acts as a Military Advisory AI, which may or may not be her only function. She is a smart AI,, like Cortana. Her avatar is a young woman with long hair. She speaks with a distinct British accent. Although prone to sarcastic comments and exhibiting a seemingly uncaring attitude, she is more compassionate than she seems. She also appears to have a fascination with human relationships.

As the Spirit of Fire was too far away from UNSC territory and traveling without a Shaw-Fujikawa Translight Engine, it is unlikely that Serina was deleted.

Quotes

 * "Recalling surface squads so we can all die together. Aye, sir!"
 * "Well, this is new...and scary." (Upon seeing the Flood)
 * "The MAC is online and primed. Payback time!"
 * "Expecting trouble, Captain?"
 * "Standard orbit achieved, all systems normal."
 * "So...nothing too difficult, then?"
 * "Here are some reinforcements, play nice."
 * "So...we left a note saying we're leaving, right?"
 * "Well, it'll be pretty obvious if he succeeds."
 * "Aye sir. Crazy mystery trip to Arcadia plotted in, spinning up FTL drive."
 * "Threading a needle while accelerating around an exploding star inside a planet that's falling apart? Sure, why not?"
 * "So...am I the only one freaked out by the fact that we're inside the planet?"
 * "Closing your eyes might help, too."
 * "Captain, wake up. Something has happened."

Trivia

 * Serina seems to have a theoretical interest in chocolate.
 * "Spinning up FTL drive" may be a reference to the re-imagined Battlestar Galactica, which uses this phrase frequently when the Fleet jumps.
 * Serina, knowing the crew of the Spirit of Fire may be on a one-way trip, manufactured and delivered fake emails from family members to the crew celebrating Valentine's Day. No one ever suspected her of this deception.
 * She has a very sarcastic and detached nature. She frequently seems to disregard the lives of others, even her own ship's crew - such as when the Spirit of Fire is slowly being pulled inside the Shield World - almost always responding to their peril with some curious remark or dark joke.
 * She was voiced by Courtney Taylor.
 * Her name "Serina" means "Serene", or "Calm".
 * Serina's only human memory is "kissing a boy".
 * After completing the game on Legendary, Serina will say "Captain, wake up; something has happened." After that, she will repeat that quote if the last level is completed.

List of appearances

 * Halo Wars
 * Halo Wars: Genesis