Hi, I found that to get OP running in Wine, I first had to install OP, run it, sign with my CD key (original game from a pre order back then) then install 2.552.  Before that, the game would not run, instead giving 
me C++ runtime errors. 
Then I installed Firesoul mod 4.1.1 and then the EAW custom campaigns compiled by Nuclear Wessels.  It all works 100%, even the multiplay, except I am still working on my D2.  Now I have OP working, I will try to start  the OP Dynaverse.  Are there any other mods I should do?
I am using OpenSpy and working on getting that operational to act as a platform, collaborating with another game clique for their hobby.
rachel