For those who are always looking for more info concerning maps in Halo Wars, these is now a Blood Gulch page up. There’s of course the design notes, giving you some insight as to the inspiration behind Blood Gulch.

The tactics of the map are interesting, and like you guess everything is about moving quick. Being a 1v1 skirmish map, it’s about speed and establishing a presence early on. They even suggest trying to get a foothold in your opponent’s extra base.