I pretty much agree with Mark M's comments.

There are two questions in my mind:

  (1) while one channel per team makes sense, 
      should there be a second voice channel for obs,
      so that they can peanut gallery on their own? 

  (2) should certain macros (mainly distress, maybe ogg call) 
      make a sound in the audio channel? 
      do distresses make any sound now? (linux player talkin here...)