A friend always appreciated the ability to install updates without needing an internet connection, but you no longer give instructions on how to do this since the Unity update. My friend is a bit eccentric and worries about the ability to back up his data and programs and refuses to connect to the internet for many things (like game updates). I try to remind him that a world without internet is most likely a world without electricity, but he wont hear it. Although, I can respect his appreciation for non-intrusive DRM and games which don't require online activation.
I'm guessing you could just zip up the AIWar folder to archive the game at any particular beta version, but is there another way I should be aware of? Thanks.