Well I am not sure about rar vs exe but I told most people to get the 2.0 (Installer) and then both hotfixes, I got it from Desurah which has hotfix one already but not two so i had to get that. I know that desurah and installe are compatible though because one of the two people I played with said they got the installer and we were able to play fine (although GC froze up when 3 attacks happened nearly simultaneously)
Let me know what happens. This is something I'm still working on trying to streamline, since within the team there's not really much online testing we can do.
That would depend on what the game expects to be where. The first thing to try would be to cut and paste all of the skirmish maps (as opposed to copy and paste) and put them into the default custom maps folder.
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