Stuck in a script for character models

I'm stuck in a problem so let me start from the beginning , simple and small

This is about my Cod4 promod 216 live raw which I'm using for my promod snd server , I'm posting this here cause there is no other place in the internet better than here about the topic I'm talking about.

I wanted to add a few character model for my cod4 promod server. I've put all the files perfectly in images/materials/material_properties/xmodel/xmodelparts/xmodelsurfs , precatched em and edited the mod.csv and compiled it. Since I didn't knew what's the code to select the skin in game , I opened a zombie mod source to read its code to select skins. Here's what I found out

main()
{
self setModel("anna");
self setViewmodel("viewhands_tf141");
self.voice = "russian";
self.armor = "light";
}

precache()
{
precacheModel("anna");
precacheModel("viewhands_tf141");
}

and another one

main()
{
self setModel("Nyreen_ME3");
self setViewmodel("viewhands_tf141");
self.voice = "russian";
self.armor = "none";
}

precache()
{
precacheModel("Nyreen_ME3");
precacheModel("viewhands_tf141");
}

As you can see , there is a Viewmodel named viewhands_tf141 in both main and precache. I don't understand what is this viewhands_tf141 ? there is no viewhands_tf141 in my mod source and all I could guess is that since Zombie always makes the players select on one side of the team and the other one is for zombies, maybe viewhands_tf141 means only the team of the players can get the models , not the zombies. So what should I actually put here for setViewmodel and precacheModel ?

Thank you for your patience and time for reading out my problem. Hope you'll help out this fellow person.

In cod4, all model stuff starts in maps/mp/gametypes/_teams.gsc, in the function setPlayerModels().
It calls a bunch of mptype/*.gsc scripts's precache() function, which looks like this:

PHP Code:

---

// THIS FILE IS AUTOGENERATED, DO NOT MODIFY
main()
{

    character\character_mp_usmc_specops::main();
}

precache()
{
    character\character_mp_usmc_specops::precache();
} 


---

So, chasing that to the character/ folder leads us to this:

PHP Code:

---

// THIS FILE IS AUTOGENERATED, DO NOT MODIFY
main()
{
    self setModel("body_mp_usmc_specops");
    self attach("head_mp_usmc_tactical_mich_stripes_nomex", "", true);
    self setViewmodel("viewmodel_base_viewhands");
    self.voice = "american";
}

precache()
{
    precacheModel("body_mp_usmc_specops");
    precacheModel("head_mp_usmc_tactical_mich_stripes_nomex");
    precacheModel("viewmodel_base_viewhands");
} 


---

The precache() in there does the precaching, while the main() is called on a player when he spawns to set his model.

If you want to change the models, the easiest way to make something that's understandable is to edit the _teams.gsc file to point to different mptype/ files, in which you can directly do the precache/main stuff then.