It's an absolute shame the mod author has abandoned this amazing mod. Thankfully, someone has picked it up and transferred it into a collection of others. It is called Tactical Overwatch in this new mod. The functionality is the same as Smart Overwatch. The enemies do not use this ability. it is a second overwatch option for your units.

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1610275625