Jack might not be with the other men, but the other men don't really care if jack is willing/wants to go 1v1 with carl-they drew pistols on him and really want carl dead and are willing to shoot him. So he's ran up stairs while chucking items at anyone climbing after him.
Carl shouts back down laughing as he chucks a large marble bust on a man's head and he tumbles down the stairs.
Mate, i can't really give you a whooping in hand to hand when i got men with guns wanting to shoot me.
Carl nearly gets hit in the head, before ducking back into the top room on the 4th floor. He feels his body and realizes he has a few shot wounds, but he just laughs as he shouts.
Jeez you men are awful shots. If I was shooting I would have killed me 3 times by now. Just proves only one who could beat me is me.