GAC gameplan

It's a shame the only answer you got appears to be an internet bot!  However, the work you're asking does appear to be rather large.  I mean.......you....we'd have to check your account and make teams before saying which should be on defence.  So, I think it'd be better if you did that yourself;  if you make up the teams, then somebody can list which ones they thought should go where.

However, that aside, on first glances, these are my thoughts.

Your progress seems to be going very well.  So, whatever you've decided, it is working.  You have 2 GLs, but both of them are extremely offensive minded.  There's also a Wampa with omicron (try to pick up his FDC to make him even better). This means the core of your attack is there, and the focus should be on finding a good defence.

I see a qui-gon omi team.  This works well on defence.  The Phasma team with the omicron can also go on defence.  I'm unsure what you do with the rest of your jedi.  However, maybe a Padme Galatic republic team can go on defence?  Then, a JKR team that probably would go on offence?  The Imperial Troopers definitely should go on offence, speed is key for them though.  Try to get them a bit faster.   The Geos could be a backwall defence team.  It might be that by the time your opponent gets to them, they'll struggle.  To be honest, I don't know Bronzium well.  I guess you can make up the rest of the defence with Palp/Mara/Vader and your CLS.  I see you're working on your Sith.  

So, I just googled it and apparently for Bronzium 5v5 you have 2 teams in each front wall, and a rear wall team?  If that's the case then maybe..... SEE, SLKR, Wampa as your key offence teams.  Your Imp Troopers would be a good 'pocket' team, if you can afford it.  They're great as a clean up.

On defence:  Phasma, Padme, qui-gon on defence.  The geos on the back wall.  This means you have Empire, CLS and Jedi as flex picks.  You can put one on defence and the others on offence.  You then have 2 Sith teams that are coming along well.  The Sith Trio and Sith Empire.  The Sith Trio (with savage) are a top, top team.  It's a tough team to beat on defence and can take out some very good teams on offence.  

These are my thoughts (I guess in the end not just a first glance).  I think my way is very offence minded and the defence is a little weak.  But.... as you're winning, I'd say continue doing what you're doing!