What's the difference between CF and NZ?

In my opinion, CF is much better than NZ in picture sense and realism, such as the feeling of changing guns, the recoil of shooting, and the gun itself. NZ has many shortcomings. The biggest drawback is that the picture is copied too much and there are too many colors. People can't be seen clearly at a distance, and the hands of the characters are too big, which is nonsense compared with guns. CF is different. Guns are made according to real pictures, and characters are also based on reality.