https://bugs.winehq.org/show_bug.cgi?id=44912
--- Comment #4 from dereklesho52@Gmail.com --- Hello, sorry for the spam from May, I've learned a lot since then and I have prototype implementation that works with battleye. You can find my work right here: https://github.com/Guy1524/wine/commits/battleye-work
The code isn't ready for merging but if somebody is better than me at this kind of thing it'd be great if you could fork and clean this up for a merge.