This master chief helmet is modeled after the one that appears in halo infinite. Though it has some mild differences, the proportions and majority of details are 100% accurate to the files used in the game. The files are designed and suitable for 3D Printing. The files also include a visor buck for vaccum moulding a visor out of plastic. let me know if you have any problems with these files and I'll get it fixed to the best of my ability. Thanks.