Rejiggering my hangar. Input welcome.

Yeah, 4/6 mediums, as the MM is now (which is subject to change very soon), will put you at the High Bronze border with Low Silver.

Deffo get the 5th slot.

As to that mixed Patton... there is a user in the Forums that loves that setup, as it allows for very close to continuous fire since the reload cycles for the Punishers and the Molots are different. However, you can try CRV Pins on that Patton if you want a different but good mid-range option... or go with the 4 Molots like was stated above, for a more suppression type mid-range armament that is close to what you already have. I still find 500m about the ideal range for the Molots for actually servicing targets with real damage, even though it says 800m in the description, but even at 750m the suppression effect can throw off the aim, or spook into hiding, an annoying mid/long range bot.

I personally like the Patton with Aphids, Mags, or Pinatas (Like your 2nd one has) in Bronze (More damage potential for that platform), letting a Golem Trident/Crv/Tulum, or Vitz Trident/CRV x2 take the mid-range role, but CRV Pattons are, still, a damn good option. And, also like was said above... the Punisher Patton really is a Shredder up close...think I'll call it that from now on, too... but the Patton doesn't seem to have the endurance for that unless you play a very strong flanking game and can keep from being shot at. Pinatas and Mags are just overall better for the early stages of close-in knife fighting with a Patton.  Aphids reign supreme as the king... But... 750 Au makes them out of reach at least until you get that 5th slot.

How close are you to getting a Taran for that Boa?  That will, most likely, get you an increase in damage and win rates, all by itself, while in Bronze, as there aren't a lot of shield bots around.  Coupled with the Thunder and Boa's High HP plus maneuverability?  It's a recipe for sweet damage I'd run two of them in Bronze without hesitation. 

Your hangar looks fairly well-balanced overall, so I don't think there's anything that should be bumping you up. You will probably enjoy more success if you can get all your weapons to level 6, which should land you at the top of what we call "high bronze tier" most of the time. And the Thunder on your Schutze could probably be level 7 or 8 without affecting your match placement, since it's a light bot. Your Punisher/Molot Patton is not horrible, but is not optimized because the Molots and Punishers have different "sweet spots" for range. You would do more damage in the 300-500m range if you had 4 Molots, and would do a lot more damage in the 100-200m range if you had 4 Punishers. Looking at the rest of your hangar, in the medium-term I would recommend leveling up 2 more Molots to give you more of a mid-range option. Although 4 Punishers at close range are pretty devastating if that's what you prefer.

If you haven't already, start saving gold for your 5th slot. You will find it really helps survivability.

After you have all your weapons on your mediums to level 6, you can start slowly leveling them up to about level 8.

What about Orkans?

I'm running a hangar with 2/7 lights (on the way to 3/9 lights) and 2/6 mediums. A Thunder, Orkan, Pinata Golem is a heck of a great medium robot. I also have a Plasma Golem with Thunder, Taran, Magnum and although it's pretty good it doesn't have the huge up-front damage capability of the TOP Golem and needs to sit in the open longer to get the damage in.

So far I've found for WSP 3 Magnums were a good purchase for a tri-Mag Gep and now I can pass them over to medium bots. Then Tarans - I still run a Taran Cossack and I love it. But for gold weapons, the Orkan is excellent. The Wiki guide suggests it's the top priority after slots 3 and 4. warrobots.wikia.com/wiki/Strayed's_list_of_gold_purchases_from_highest_priority_to_lowest