For this , we used Ableton as our main DAW with which to compile everything in the one big session.The main reason for using this DAW is that Protools 11 does not support RTAS plug-ins anymore , as well as only supporting 64bit variants of those plug-ins making it difficult to the get AXX version. AVID also banned the use of VST to AAX wrappers .Ableton on the other had supports old fashioned VST’s , giving us almost infinitely more access to plug-ins.In the end we had 153 tracks in the main session file , and that’s with all the music and dialogue tracks consolidated , which in that case was the total was 200+ tracks. I think in total it took us 2 week roughly mixing as home as well as in the sound theater to get it at the point were it is now.  Here are some screen shots of the main Ableton session and Protools sessions.