Changing character model for certain outfits, yes, it's the HD mod.

I know I know ew HD, for the record, it's just to get the military story mod working, I have no clue why it works.

Anyway, I want to change the player model for the regular soldier outfit, to perhaps one of these guys here https://puu.sh/IwIGD/a682a70290.jpg and yes, they're regulars, not Spetznaz.

How do I do so?