My favorite way to do it was first have Rhue use Flux XL ,or whatever its called, to Lexus, Then have Rhue and Lexus channel their aura's into each other, the bab, two side guards are dead and all you have to deal with is the Big dude. But if your stuck on the first two well, go do alot of Side missions, absorb all notch items. Oh yea you need lexus to do this