Campaign
Ash is the second boss in the Titanfall 2's campaign during the third mission "Into the Abyss". Her Titan is a Ronin class, and she is accompanied by many spectres during the bossfight.
Lore
Ash is a Simulacrum rebuilt by Vinson Dynamics after the destruction of the Automated Testing Facility on Typhon.
Ash seeks to discover the secrets of her past and believes the answers lie in the data banks of the Remnant Fleet.