Hey.
Xtreme Legends is an expansion to DW4, and runners have ran the game using the Xtreme Legends expansion since the first approved run on SDA.
If more people ran this game I'm sure categories would be agreed upon, but that's not the case, so for now it's completely arbitrary.
My runs are pretty standard and with the newfound tech they can definitely be improved, especially the Shu run with Ma Chao. Good luck though.
I call it mountain clip. Basically if you align your horse at a specific angle on the edge of a mountain, dismounting your horse at that angle will clip you through the invisible wall and you can run around on mountains and jump outside the map.
Takes a bit of practice at first but you'll eventually get the hang of it with visual cues and whatnot.
I've found this can save a lot of time on Wu Zhang Plains and potentially Hu Lao Gate.
Tested on DW4:XL