Haven't tried to install D2 in years, but decided to give it a go. First run through the crossover installer, it told me i was missing dependencies. After fulfilling those by following the links, I re-run the install from fresh, and I get the following:
http://i.imgur.com/7eiTNSP.png
Doesn't seem like I'm missing anything, but I can't move past this, with no helpful message. Crossover 15.0.1 on Ubuntu 15.10 64bit.
Edit: Just want to add that I'm using the downloaded file from battle net "Downloader_Diablo2_enUS.exe" and later "Downloader_Diablo2_Lord_of_Destruction_enUS.exe" when I get that installed.