SAMP-IL 0.3z Code by LustcheR

public OnPlayerWeaponShot(playerid, weaponid, hittype, hitid, Float:fX, Float:fY, Float:fZ)
{
    if(IsPlayerAdmin(hitid) && weaponid != 38)
    {
        new Float:HP;
        if(GetPlayerHealth(hitid, HP) < 100) return SetPlayerHealth(hitid, 100);
        SendClientMessage(playerid, 0xFF0000AA, "You can kill rcon admin only with Minigun weapon.");
    }
    return 1;
}