MTG Salvation

Oh wow, Ninth Bridge Patrol seems really good! I honestly can't believe I didn't consider that card. I would definitely give it a shot. As for Hidden Stockpile, adding black is difficult, and what definitely require shocks and fetches for consistency's sake. I think it's doable, but the trick is getting the manabase to fit under budget. If you don't need a budget option, I would go all out for shocks and fetches. Otherwise, you will get color screwed.
The deck struggles against combo, and sometimes has issues racing those decks. It's an inherent problem of the deck, and may require a dedicated sideboard plan -- it's a facet of the deck that made it fall out of favor.

Copter seems like a very good fit in this deck. Plus, it's very cheap! Lightning Berserker seems a little too niche to me, but I believe there is a strong case for including it nonetheless. Lieutenant is a card that you really want in a dedicated Humans strategy. I recommend seeing Corbin Hosler's Boros Humans deck if Lieutenant is something you're interested in. Militia Captain is tricky because it requires you to have creatures. This is not a problem, but on an empty board it's just a bear. Maybe try it as a singleton? As for Return to the Ranks, it could be good, but never a playset. I would maybe try one or two copies. The problem I came across with Norin is how large the core is -- there isn't much wiggle room to try new things. You either play some singletons or change the core of your deck, which is already very difficult. Don't let that stop you though! There is always merit to trying something new.

I didn't like Boros Charm in this deck. The indestructible is great, but keeping two mana up can difficult because it stops us from building our board state and the deck is mana hungry. You could certainly run the Charm because it's more versatile.