So we asked ourselves, would it still be possible to deliver an authentic classic experience if we took our modern code, with all its back-end improvements and changes, and used it to process the Patch 1.12 game data? While that might seem counterintuitive, this would inherently include classic systems like skill ranks, old quests and terrain, talents, and so on, while later features like Transmog and Achievements would effectively not exist because they were entirely absent from the data. After weeks of R&D, experimentation, and prototyping, we were confident we could deliver the classic WoW content and gameplay without sacrificing the literally millions of hours put in to back-end development over the past 13 years.

Fortunately, WoW’s modern editor is able to perform some of these data conversions, and for the terrain data we could convert it with the same editor we used on Battle for Azeroth. The modern editor “knows” how to load the old terrain format and how to transform it into the new terrain format and export it to the modern engine. This corrected the issues of campfire placements and the appearance of trees, among other things.
Nov 15 My only complain about Classic... ...Horde doesn't have any nice looking races. In my mind each class has best RPG based race for it. So, I like Gnomes because I feel them Mages. Night Elves - Hunters. Humans - Paladins. On Horde side: Undead - ugly. Trolls - ugly. Orcs... uhh fine as Warriors, but I don't play warriors. Tauren - Warriors or Shaman, again don't play those. Blood Elves! Give me Blood Elves!Vlasta36 Nov 15