Horses

Is the wild horses in this server spawn randomly like original or have specific location for high tier like tier 5 horses?

 

I do not know where specific Tier horses spawn in comparison to the Official game but I can confirm a bunch of wild horses just West of Heidel City near the first Node up that road, I have only managed to catch a Tier 2 horse here so far but I have only captured four horses in total so there might be higher Tier horses as well. In areas around Calpheon there should be higher Tier horses according to the Official game but I have not had the time to go and try for myself yet.

 

There are horses along the far western entrance to Kama. All along the road. Also a group of them as entering from the eastern entrance. you can't miss them, they're all over in kama. Since this is the latest areas to be added to bdo, i assume there would be a higher chance at higher tier horses.