[Bacardi]

Updated. I added SDKHook_TakeDamage back.
And check is attacker still alive and weapon have not null index.
Added some pinned checks

PHP Code:

#include <sdktools>
#include <sdkhooks>

bool IsAdmin[MAXPLAYERS+1];

public void OnPluginStart()
{
    for(int i = 1; i <= MaxClients; i++)
    {
        if(IsClientInGame(i) && IsClientAuthorized(i)) OnClientPostAdminCheck(i);
    }

}

public void OnClientPostAdminCheck(client)
{
    SDKHookEx(client, SDKHook_OnTakeDamage, OnTakeDamage);
    IsAdmin[client] = CheckCommandAccess(client, "sm_admin", ADMFLAG_GENERIC);
}

public Action OnTakeDamage(int victim, int &attacker, int &inflictor, float &damage, int &damagetype)
{
    if( !(0 < attacker <= MaxClients) || !IsClientInGame(attacker) || victim == attacker || IsAdmin[attacker]) return Plugin_Continue;

    if(GetClientTeam(victim) == GetClientTeam(attacker))
    {
        int weapon = GetEntPropEnt(attacker, Prop_Send, "m_hActiveWeapon");

        if(attacker != inflictor) weapon = inflictor;

        // Fix bug?
        if(!IsPlayerAlive(attacker) || weapon == -1) return Plugin_Handled;

        char classname[MAX_NAME_LENGTH];
        GetEntityClassname(weapon, classname, sizeof(classname));

        if(StrEqual(classname, "inferno", false) || StrEqual(classname, "pipe_bomb_projectile", false)) return Plugin_Continue;

        //PrintToServer("classname %s %f", classname, damage);
        //inferno
        //pipe_bomb_projectile

        if(  GetEntPropEnt(victim, Prop_Send, "m_pounceAttacker") == -1 && // hunter
             GetEntPropEnt(victim, Prop_Send, "m_jockeyAttacker") == -1 && // jockey
             GetEntPropEnt(victim, Prop_Send, "m_tongueOwner") == -1 && // tongue
             GetEntPropEnt(victim, Prop_Send, "m_carryAttacker") == -1 && // charger
             GetEntPropEnt(victim, Prop_Send, "m_pummelAttacker") == -1 && // charger ??
            !GetEntProp(victim, Prop_Send, "m_isIncapacitated") &&
            !GetEntProp(victim, Prop_Send, "m_isHangingFromLedge") )
            {
                SDKHooks_TakeDamage(attacker, inflictor, attacker, damage, damagetype, weapon);
                //PrintToServer("-classname %s %f", classname, damage);
            }

        damage = 0.0;
        return Plugin_Changed;
    }

    return Plugin_Continue;
}