https://bugs.winehq.org/show_bug.cgi?id=44912
--- Comment #7 from dereklesho52@Gmail.com --- By the way, in regards to staging, the create_process implementation in staging is different because of a five year old commit that was never mainlined. My current patch only applies to vanilla due to this reason.
On a side note, I filed 3 more bug reports with corresponding patches, and with all the patches battleye now works and Tibia runs flawlessly. Again, they are located here now: https://github.com/Guy1524/wine/commits/battleye-work-stable