Eleanor has unusually high level and hit points, and if targeted in V.A.T.S. will be marked with a skull until the player character's level reaches the mid-30's. If engaged in combat by the player character or enemies (such as the nearby yao guai or sentry bot), she fights with a heavily modified sniper rifle, and will run to her trailer and retrieve a heavily modified laser rifle from a hidden secret cache that is inaccessible by the player character. She does not come to the player character's aid in combat, but will defend herself if enemies threaten her directly.
Eleanor's stats are identical to those of a raider veteran or raider boss, which seems to be the template her character file is generated from.
If the player character attacks Eleanor, Teddy will attack her as well, indicating that Teddy is aligned with the player character and not Eleanor.
If Teddy is rescued, Eleanor will sell to the player character at a discount, approximately 25%.