High poly from Zbrush. I used floaters for seams, buttons and badge.
Face sculpt from Zbrush
Gun from Zbrush made with booleans. Details were added with floaters.
Stylized PBR game character. Based on a concept of Mateusz Mizak https://www.artstation.com/matthewmizak
Concept: https://www.artstation.com/artwork/58vQd1