[WaLkMaN]

Did you try this https://forums.alliedmods.net/showthread.php?t=219011 ?

PHP Code:

#include < amxmodx >
#include < hamsandwich >
#include < zombieplague >

new g_pluginInfo[][] =
{
    "[ZP] Addon: VIP Model",
    "1.0",
    "De{a}gLe"
};

#define IsPlayer(%0) ( 1 <= (%0) <= get_maxplayers() ) // Thank you Connor !

#define ACCESS_FLAG ADMIN_LEVEL_H

new const g_vipModelHuman[][] = { "vip" };

public plugin_precache()
{
    register_plugin( g_pluginInfo[0], g_pluginInfo[1], g_pluginInfo[2] );
    RegisterHam( Ham_Spawn, "player", "forwardClientSpawn_Post", 1 );
    
    static index;
    for (index = 0; index < sizeof g_vipModelHuman; index++ )
    {
        static patch[126];
        formatex( patch, sizeof patch, "models/player/%s/%s.mdl", g_vipModelHuman[index], g_vipModelHuman[index] );
        precache_model( patch );
    }
}

public forwardClientSpawn_Post( client, attacker, gib )
{    
    if ( IsPlayer(client) && (get_user_flags(client) & ACCESS_FLAG) )        
        zp_override_user_model( client, g_vipModelHuman[random_num(0, sizeof g_vipModelHuman  - 1)] );    
}

public zp_user_humanized_post( client, survivor )
{
    if ( zp_get_user_survivor(client) )
        return ZP_PLUGIN_HANDLED;
        
    if ( IsPlayer(client) && (get_user_flags(client) & ACCESS_FLAG) )    
        zp_override_user_model( client, g_vipModelHuman[random_num(0, sizeof g_vipModelHuman  - 1)] );
        
    return PLUGIN_CONTINUE;
} 


[GraviAnt]

This plugin works, thanks