Los Angeles was invaded by kpr troops,leading to the destruction of the city,US army captain Blake,anderson,walker amongst others was sent to stop them,and in other to do this they had to receive Intel from a computer that is been guarded heavily by kpr troops,they succeeded in grabbing the intel but they lost good men,walker was attacked by kpr troops, leading to the destruction of the building, but he still managed to survive ,at the they were evacuated.