Holy ♥♥♥♥ it has been years since I've even touched this... however there is something that has come to my attention.

A commenter by the name of "The Great Warper" has posted this in the comments of this guide

https://gamebanana.com/mods/35036

This is a new and much more efficient way of changing your playermodel

But for old times sake I will keep the console means up in case you want to do that

to activate the console go to options then keyboard then go to advanced the click the check box on activate console and there the consol has been activated

Type in cl_playermodel and here are the different player models

models/combine_soldier.mdl
models/combine_soldier_prisonguard.mdl
models/combine_super_soldier.mdl
models/police.mdl
models/humans/group03/female_01.mdl
models/humans/group03/female_02.mdl
models/humans/group03/female_03.mdl
models/humans/group03/female_04.mdl
models/humans/group03/female_06.mdl
models/humans/group03/female_07.mdl
models/humans/group03/male_01.mdl
models/humans/group03/male_02.mdl
models/humans/group03/male_03.mdl
models/humans/group03/male_04.mdl
models/humans/group03/male_05.mdl
models/humans/group03/male_06.mdl
models/humans/group03/male_07.mdl
models/humans/group03/male_08.mdl
models/humans/group03/male_09.mdl
so far that is all I could find online I will try to put in moded models like the delphox model or something like that

credits:

goes to [foo] bar for the console commands and me for making the guide and all of the others for soporting it also if [foo] bar wants me to take it down I will

I also want to thank "The Great Warper" for informing me of the new means in which you can fix the one in the options menu.

THANK YOU and I hope this helped