The problem your facing is you have an Old Firmware.. You cant play games like Tekken 6, ACII, Modern Warfare 2.. Any games after MW2 or Tekken 6.. Your running on an old firmware.. If you live in Karachi then contact "Faizy" in PG, he modifies consoles.. He can flash your drive with the latest firmware.. It requires skill and equipment.. You have huge chance of destroying your console if you think about doing it yourself..