I have a confession to make: we at EBNOM have had a working custom-battle capable alpha for several weeks now.
And we haven't told you.
Despite a stall in further progress on unit creation due to the temporary absence of our friend Finn MacCumhail, I and a few members of the EB Online community have been testing an alpha version of the mod, capable of custom battles and with a large number of both old and new units implemented and fully working!
Because of the stalled progress on the custom battle alpha due to my work on some map files right now, I have decided to let you guys download the current build of the alpha!
Instructions: Make sure you have BI installed. Extract each of the folders into your BI directory. It is modfoldered. After this, create a shortcut to Bi.exe with the tags "-mod:bi\EBNOM -show_err -nm"
Part 1: http://www.mediafire.com/?q7ov5y3sezkpnmt
Part 2: http://www.mediafire.com/?1mcrekdkauja9g5
Part 3: http://www.mediafire.com/?ziz37beb7d74b35
Part 4: http://www.mediafire.com/?hdzaaf7tfkyrfyv
Patch (extract AFTER Parts 1-4, very important!): http://www.mediafire.com/?dr8wzubxlfsbcu3
BE WARNED: There are many units that do not work. Much of the Parthian and Armenian rosters do not work, and practically the entire Sarmatian roster is non-functional. There are some assorted other units (for example, Numidian Slingers, Cluddacorioi, and Bagaudoi) that do not work. Be wary of these. Arjos Suadurix has an entire list of the non-functional units. However, 95% or so of units are functional, and battles are perfectly playable.