Zas M21 is a Tactical Doll (T-Doll) in the mobile strategy game 'Girls' Frontline', which features anthropomorphized firearms as characters. Zas M21 is portrayed as a calm and collected sniper with a strong sense of duty. She is known for her excellent marksmanship and strategic prowess. In the game, she plays a key role as a powerful damage dealer with skills that focus on area-of-effect attacks. Her stoic demeanor and reliability make her a respected figure among her peers, often seen as a leader in critical missions.