Ramon ducks too because that's what you do when someone is firing a gun in close proximity to you. He's at the other end of the table from Kostya though, with Anton between them - who is on his knees and trying to pull a small gun out of his boot. It's jamming on the hem of his jeans though and he won't stand up because there are gunshots and he knows that Mary Anne is carrying as well as his friend.

Ramon doesn't bother getting his own gun out, that'd be too easy. He laughs wildly and launches forward instead, throwing a hard punch into the Russian's face. Anton is no weakling - he takes the punch and seems more than happy to abandon his pistol for the time being and engage in some old-fashioned punching, leaving Mary Anne and Kostya to their own devices.