I ran the battle 3 times. First time, the Diablo fired its BFRed at one of the Lucifer's main cannons. The BFRed fired its own beam cannon at the Diablo and disabled the Diablo's BFRed beam cannon. The Diablo was firing all its secondary weapons at the Lucifer, disabling most of its other beams. The second time, the Lucifer fired its beams at the Diablo's BFRed weapon, then the Lucifer fired its underside beam cannon at another Diablo beam cannon, but the Diablo fried the Lucifer with four of its aft turrets in one go. Third time the Lucifer got fried by the Diablo isntantly.