A hundred assailants? More like Rorke's Drift than a normal confrontation--and bet there'd be a couple of guns, illegal or otherwise, in the crowd.
Even if one or two thugs had a gun, do you think that once the shooting started they would stand there, or that they would run?
As for me, if I'm surrounded by a hundred, I would probably decide I'm screwed regardless, and I might as well select an honor guard to take with me.