Personally, I'm not a fan of the Orthrus as a mainline DPS ship. I just don't like rapid lights in general for anything except for anti-tackle, and even then I think a beam zealot or ONI does well in this regard. Also, 2 logis for a 10 man gang is quite conservative, but forgivable. Personally I would go with either 0 or 1 logi, but I think 2 is okay as well. I think the gang would also benefit from a Keres, but with 2 logi I suppose it isn't necessary. Ideally, you would also try to kill more than just tackle by trying to split or stretch the enemy gang. In terms of links, you would probably want a triple link Bifrost or Stork (I think these are a thing, and at worst you could do a double linked one).
For the brawling comp, are you max tanking the legion? If so, I think this is a bad idea as you are dedicating 1/6th of your dps ships to probing (and probably a bit of ewar). I think the Brutix Navy could work as your mainline dps ship, although I haven't really ran through the fitting. You again have two logi, which I think is okay in this case. However, as you're going to be brawling, your logi are going to be your squishiest targets by far, and if they die you are entirely fucked. Additionally, I'm not sure if it is a good idea to be warping around in armor tanked battlecruisers trying to catch a kitey fleet. By the time you land and lock them anything relatively fast should be out of web range. That being said, why would you use a HIC bubble when you could easily just use your DIC to bubble and your HIC for focused points? Finally, you are probably going to want armor links on either a CS or spread accross your Brutixes (although I'm not sure if a link will fit okay on these). In fact, you would probably be better off using Eos or Astarte instead of the Brutix Navy Issue as your mainline ship here.
As a final task from me, can you generate the fits for the Orthrus and the Brutix Navy Issue that you plan to use for these fleets?