I'm fond of the little Blue and may return to it, but I couldn't pass up the chance at being Thane for awhile.
/quickscope Dantius
At the risk of showing my ignorance, how? T3 by definition requires you to be good at more than just fighting, even if it's fighting at range. None of the Gunslinger archetypes change that; they're all different ways of saying "I shoot it." They don't have the skills required to be a monkey or a face, none of their deeds help them sneak or scout (not to mention, guns are pretty loud anyway), can't bypass obstacles like walls or traps... and even in combat they have weaknesses, such as being in melee or dealing with groups.