[Maxximou5]

Here's two different methods I've used. All of which can be made better, but the bones are there.

Method of looping through m_hMyWeapons:

Spoiler

PHP Code:

#include <sourcemod>
#include <sdktools>
#include <sdkhooks>
#include <cstrike>

#pragma newdecls required

char sWeapon[MAXPLAYERS + 1][5][32];

public void OnPluginStart()
{
    RegAdminCmd("sm_ll", Command_LoadoutList, ADMFLAG_ROOT, "Lists current clients weapon loadout.");
}

public Action Command_LoadoutList(int client, int args)
{
    if (client == 0)
    {
        ReplyToCommand(client, "[SM] %t", "Command is in-game only");
        return Plugin_Handled;
    }

    if (IsValidClient(client) && GetClientTeam(client) > CS_TEAM_SPECTATOR)
    {    
        int size = GetEntPropArraySize(client, Prop_Send, "m_hMyWeapons");

        PrintToServer("///////////////////////////////////////////////////////////");
        PrintToServer("");

        for (int i = 0; i < size; i++)
        {
            int weaponEntity = GetEntPropEnt(client, Prop_Send, "m_hMyWeapons", i);
            if (weaponEntity != -1 && GetEntityClassname(weaponEntity, sWeapon[client][i], sizeof(sWeapon[][])))
            {
                SetWeaponClassname(weaponEntity, sWeapon[client][i], sizeof(sWeapon[][]));
                PrintToServer("SLOT: %i - ENTITY: %i - CLASS: %s", i, weaponEntity, sWeapon[client][i]);
            }
        }
        PrintToServer("");
        PrintToServer("///////////////////////////////////////////////////////////");
    }
    return Plugin_Handled;
}

void SetWeaponClassname(int weapon, char[] buffer, int size)
{
    switch (GetEntProp(weapon, Prop_Send, "m_iItemDefinitionIndex"))
    {
        case 23: Format(buffer, size, "weapon_mp5sd");
        case 60: Format(buffer, size, "weapon_m4a1_silencer");
        case 61: Format(buffer, size, "weapon_usp_silencer");
        case 63: Format(buffer, size, "weapon_cz75a");
        case 64: Format(buffer, size, "weapon_revolver");
        default: GetEntityClassname(weapon, buffer, size);
    }
}

bool IsValidClient(int client)
{
    if (!(0 < client <= MaxClients)) return false;
    if (!IsClientInGame(client)) return false;
    return true;
} 


Method of looping through client's weapon slots:

Spoiler

PHP Code:

#include <sourcemod>
#include <sdktools>
#include <sdkhooks>
#include <cstrike>

#pragma newdecls required

char sWeapon[MAXPLAYERS + 1][5][32];

public void OnPluginStart()
{
    RegAdminCmd("sm_wu", Command_WeaponClassUpdate, ADMFLAG_ROOT, "Updates clients weapon index.");
    RegAdminCmd("sm_wl", Command_WeaponClassList, ADMFLAG_ROOT, "Lists clients weapon index.");
    RegAdminCmd("sm_wg", Command_WeaponClassGive, ADMFLAG_ROOT, "Gives clients weapon index.");
}

public Action Command_WeaponClassUpdate(int client, int args)
{
    if (client == 0)
    {
        ReplyToCommand(client, "[SM] %t", "Command is in-game only");
        return Plugin_Handled;
    }

    if (IsValidClient(client) && GetClientTeam(client) > CS_TEAM_SPECTATOR)
    {
        PrintToServer("///////////////////////////////////////////////////////////");
        PrintToServer("");
        PrintToServer("Command_WeaponClassUpdate");
        PrintToServer("");

        for (int i = 0; i < 5; i++)
        {
            int weapon = GetPlayerWeaponSlot(client, i);
            if (weapon != -1)
            {
                SetWeaponClassname(weapon, sWeapon[client][i], sizeof(sWeapon[][]));
                PrintToServer("SLOT: %i - WEAPON: %s", i, sWeapon[client][i]);
            }
        }
        PrintToServer("");
        PrintToServer("///////////////////////////////////////////////////////////");
    }
    return Plugin_Handled;
}

public Action Command_WeaponClassList(int client, int args)
{
    if (client == 0)
    {
        ReplyToCommand(client, "[SM] %t", "Command is in-game only");
        return Plugin_Handled;
    }

    if (IsValidClient(client) && GetClientTeam(client) > CS_TEAM_SPECTATOR)
    {
        PrintToServer("///////////////////////////////////////////////////////////");
        PrintToServer("");
        PrintToServer("Command_WeaponClassList");
        PrintToServer("");

        for (int i = 0; i < 5; i++)
        {
            if (strlen(sWeapon[client][i]))
            {
                PrintToServer("m_iItemDefinitionIndex: %i", GetWeaponClassname(client, i));
                PrintToServer("SLOT: %i - WEAPON: %s", i, sWeapon[client][i]);
                PrintToServer("");
            }
        }

        PrintToServer("");
        PrintToServer("///////////////////////////////////////////////////////////");
    }
    return Plugin_Handled;
}

public Action Command_WeaponClassGive(int client, int args)
{
    if (client == 0)
    {
        ReplyToCommand(client, "[SM] %t", "Command is in-game only");
        return Plugin_Handled;
    }

    if (IsValidClient(client) && GetClientTeam(client) > CS_TEAM_SPECTATOR)
    {
        RemoveClientWeapons(client);
        PrintToServer("///////////////////////////////////////////////////////////");
        PrintToServer("");
        PrintToServer("Command_WeaponClassGive");
        PrintToServer("");

        for (int i = 0; i < 5; i++)
        {
            if (strlen(sWeapon[client][i]) && IsValidEntity(FindEntityByClassname(client, sWeapon[client][i]) != -1))
            {
                GivePlayerItem(client, sWeapon[client][i]);
                PrintToServer("SLOT: %i - WEAPON: %s", i, sWeapon[client][i]);
            }
        }

        PrintToServer("");
        PrintToServer("///////////////////////////////////////////////////////////");
    }
    return Plugin_Handled;
}

void RemoveClientWeapons(int client)
{
    if (IsValidClient(client))
    {
        for (int i = 0; i < 5; i++)
        {
            int index;
            while ((index = GetPlayerWeaponSlot(client, i)) != -1)
            {
                RemovePlayerItem(client, index);
                AcceptEntityInput(index, "Kill");
            }
        }
    }
}

int GetWeaponClassname(int client, int slot)
{
    int index = FindEntityByClassname(client, sWeapon[client][slot]);

    if (StrEqual(sWeapon[client][slot], "weapon_mp5sd")) return 23;
    if (StrEqual(sWeapon[client][slot], "weapon_m4a1_silencer")) return 60;
    if (StrEqual(sWeapon[client][slot], "weapon_usp_silencer")) return 61;
    if (StrEqual(sWeapon[client][slot], "weapon_cz75a")) return 63;
    if (StrEqual(sWeapon[client][slot], "weapon_revolver")) return 64;
    else
        GetEntProp(index, Prop_Send, "m_iItemDefinitionIndex");
    return index;
}

void SetWeaponClassname(int weapon, char[] buffer, int size)
{
    switch (GetEntProp(weapon, Prop_Send, "m_iItemDefinitionIndex"))
    {
        case 23: Format(buffer, size, "weapon_mp5sd");
        case 60: Format(buffer, size, "weapon_m4a1_silencer");
        case 61: Format(buffer, size, "weapon_usp_silencer");
        case 63: Format(buffer, size, "weapon_cz75a");
        case 64: Format(buffer, size, "weapon_revolver");
        default: GetEntityClassname(weapon, buffer, size);
    }
}

bool IsValidClient(int client)
{
    if (!(0 < client <= MaxClients)) return false;
    if (!IsClientInGame(client)) return false;
    return true;
}