Have a full mesh and separate parts
Video: https://youtu.be/hwh1Ex7ty5Q
6 UV set 4096x4096
In the model, it is desirable to use a shader with a two-sided display of polygons on the material of clothing
Character with mask:
Faces: 59892
Vertex: 60261
Tris: 116374
Character without mask:
Faces: 59280
Vertex: 59597
Tris: 115176
Character without weapons:
Faces: 59892
Vertex: 60261
Tris: 116374
Character with weapon:
Faces: 60667
Vertex: 61011
Tris: 117867
Katana:
Faces: 775
Vertex: 750
Tris: 1493