Original Map: Steppes of War 3.4 (test version)
Editing Program: SCMDraft 2 Beta 0.8.0
A map with a glitch inside it.
When you play UMS, the other player's base doesn't appear.
What I've done is place "Destructible rocks" on the corresponding places on the map. (as the image on the SC2 website)
If anyone has a solution to the problem, please leave a comment.