Rosetti storms downstairs in a rage (maybe if he wasn't holed up in a mansion it wouldn't take him so long) and finds the five men of his who are still milling around in the great room. They tell him that the men are gone, on Masseria's orders. Rosetti doesn't even have time to work out the implications of that because gunshots are coming from the front of his house. Nucky's men? The combined army of the blacks and Chicagoans? Nope, just one guy. Richard Harrow is on his one-man mission to reclaim his surrogate son. Rosetti and a couple of his closest goons are able to hide behind the bar and then scoot out when Harrow's not looking, but for everybody else? Very bad news. Richard strides through them, blowing holes in their heads as he goes. No words, obviously. No outward emotions. This is war, after all.
Outside, Rosetti and his stragglers stumble to the car. "Where's Tonino?" one of the shouts. "Fuck him!" is Rosetti's can't-be-at-all-surprising retort. After hating the shit out of Gyp Rosetti all season, I have to admit a little satisfaction at watching him scurry like a cockroach away from danger. Which I guess means that the storyline worked at least a little, on the most basic of human impulses to see irritating people look foolish. They drive off.
Back in the Maison, it's become a first-person shooter game. If Dan Harmon were running this show instead of Terrence Winter, we would actually SEE a first-person shooter game, but that's another rant. Richard shoots a couple on the stairs (that really is an insanely long staircase), enters the corridor, and starts checking the rooms. One guy pops up at the end of the hallway -- BANG. Then another guy from the opposite end -- BANG. I keep waiting for the old lady with the baby buggy to cross the hall as an obstacle. The first guy from the end of the hallway isn't quite dead, and he rushes Harrow from behind. They struggle, they scuffle, they both reach for Richard's holstered gum, before Richard pulls out his demure little Derringer and gets him in the head. Shooter moves forward. He makes it to Tommy's room where he encounters the Boss of this level. That would be the same guy who tried to feel up on Gillian earlier in the episode. Now he's got a gun to Tommy's head. It's a tense standoff. Richard, blood all over his mask, knows that if he lowers his gun like he's being told to, he's dead and Tommy likely is too. What to do? He lowers the gun, slowly, crouching down. It's almost to floor level when he tells Tommy to close his eyes, and then, from a ridiculously low angle and with no bracing support whatsoever, Richard pulls the trigger and shoots the Level Boss through his skull. Pretty sure that's not how guns work, but what do I know? Level Complete!