Small point: If you're looking for the idea of a Street Level game, the Street Scum rules on page 354 are probably more in line with what you want - the Street Level stuff printed in the character creation chapter doesn't really do the job, as it fails to really impact Awakened in any real way.
Still, hurting that guy isn't actually that difficult. It might take some stronger weapons to get to doing Physical damage (though, APDS is reasonably available, so maybe not), but Stun will still do a very nice job of shutting you down. He might be able to soak about 8 damage semi-reliably (and indeed, it's clear he's partly built towards that so that he can actually close to melee range), but what that actually means is that his final damage from, say, a heavy pistol will be equal to the opponent's net hits in a typical case.
As for the archetypes: They're not really even a guideline; mostly, they're a lower bound.