She was unable to shoot if she needed to change position to get a better angle, couldn’t shoot at anyone indoors, and needed 2 shots if they were wearing a helmet.
Meanwhile D.D. could also sense enemies in an area, and take out anyone instantly with the knife regardless of amount of armor. And stun knife if you wanted to capture them.
Only thing Quiet was better at was a quick shot to avoid alert if you get spotted. That and fan service of course.















These days I usually start games on hard mode or higher. But i remember that was a huge mistake with Nier Automata. Its not a problem on NG+, but without chips, the first play though of the intro is impossible on harder difficulties. After hours of trying to get through the flight, I finally gave in and lowered the difficulty until the first save.