How to modify appearance in multiplayer?

[IanTheWizard]

Hi all. In multiplayer, I tried to create a character that has the exact same appearance as Zak in story mode.

But even after I used the same attribute setting (Strength: 23, Dexterity: 30), the created character still looks a bit fat. I guess the developer adjusted Zak's appearance manually.

Is it possible to modify my multiplayer character and make his appearance the same as Zak?