As the most experienced member of AR Team, M16A1 had the best understanding of each member of the team, above AR M4A1 herself. Despite her somewhat breakneck behavior, M16A1 was considered to be the most levelheaded T-Doll in AR Team, claiming that only results separated bravery from foolishness. She served as a mentor and tactical instructor to the other members of the team and considered having emotions was an important distinction between T-Dolls and mindless killing machines like those employed by standing armies, and encouraged AR M4 SOPMOD II to exploit her impulsivity rather than fight and suffer from it. HK416 considered her a rival, but M16A1 showed no concern for her.

Spoiler

As a Griffin doll, M16A1 participated in the the "Butterfly incident" together with UMP45, who she believes is the traitor behind the incident. Since then, she meets UMP45 with hostility.