So if everyone either doesn't leave the lobby through the front door, be one of the 3 who can make it up an Elevator, or find a way to remove the Daimyo from the equation, everyone in the lobby is dead. 

IE, it appears you all have 1 post to save your hides from being vaporized. Since I don't think Henry wants to throw it into his gates and vaporize a large chunk of his horde, and Balrog  seems a bit too busy to really throw the wreck outside into the void, I wish you luck in that affair. I'll post when I muster the energy, or  watch all of Kabeneri of the Iron Fortress on Amazon. Whichever is quicker.