If he is wer I think he is, he can go into the hold or further into the ship through the corridor in which Fixer has switched off lights and is pointing at the entrance. It may not know who he is shooting at, but he will probably see something to shoot at with his improved sensors. Im not sure if the other BH is making his way through the cargo hold or not. And I don't know in which moment will it be obvious the life maintenance in the hold is de-activated, but I assume the effect is not inmediate: first temperature will drop, and then air will stop flowing alongside several minutes.
Look at the map :-D
That's how I see the situation. I think everyone else is in the upper deck. And I just can't remember were Krus has barricaded.