what is cortana's goal in halo 5
Halo 5: Guardians On Genesis, Osiris encounters the planet's caretaker, the artificial intelligence 031 Exuberant Witness, who allies with them to stop Cortana. Osiris catches up to Blue Team, who reveal Cortana is planning on using the Guardians to achieve galactic peace through forcible disarmament. Master Chief, aware of the massive devastation Cortana's plan will cause, attempts to convince Cortana to stand down. She refuses and confines Blue Team in a Forerunner prison, to prevent them from interfering with her plan. Osiris manages to transfer control of Genesis back to Exuberant, who wrests the prison from Cortana as she leaves the planet via a Guardian.