Nat's skills with heavy weapons landed her the job of destroying incoming vehicles. Set up high in a skyscraper with stockpiles of rocket launchers and Spartan lasers, Nat destroyed a total of nearly two hundred enemy vehicles. When the call came to fall back to secondary defensive positions, she held off a wave of Covenant foot soldiers while the Marines fell back. For her actions on Mars, Nat was promoted to Chief Petty Officer and awarded the UNSC Medal of Honor.