@Critias
When you put it that way as far as the uncouth thing goes you do seem to make a valuable point. However in this case the book needs to more clearly define what the junk it's talking about. Running away scared because someone goes boo is not antisocial or sociopathic behavior. You also make it sound like just because he doesn't handle social interaction well he's basically turned in to a mentally challenged person which seems....not right. So to lose the quality would just mean that i have to just be a huge dick all the time and put people in harms way and NOT get any bonus points out of it(oversimplified of course). If I had been able to find rulings for negative quality: sub psychotic sociopath I would have taken that.
One problem with Qualities is that they don't always do (rules-wise) what they say on the tin (fluff-wise). Uncouth is worded in a way that makes it sound ideal for this character -- or for a great many characters, in fact -- but the actual
rules for it really leave a character in a lurch. Being "unaware" of every social skill is a real, real, crippler. Your steely-eyed sniper
can not default on any social skill, and it's those social skills that you use to defend from other social skills. You need to carefully read the rules, not just the descriptions, of Qualities.
I'd look into the Incompetent flaws, instead, were I you. Or, really, just role play your character; I've run my share of sociopaths in the past that had plenty of social skills, they just didn't really
get it on a deeper level. One trait of antisocial personality disorder is that they can have a very charming veneer, and all KINDS of social ability (to blend in and get away with their crimes) -- so not caring one way or the other about the lives or feelings of other people isn't necessarily something you
should get character points for. Hell, in plenty a Shadowrun game, it can be a real benefit.