Hello ,
I admire your work and I’am currently programming the RTS of my dreams as well. It is basicly Empire Earth + Age of Empires 2 + Supreme Commander + Command and Conquer + Starcraft 2 + Terraria + League of Legends. It may sound odd but i try to get all the best (RTS) components and combine them to the best RTS possible. I already have the basics, but i need a more professional solution at some places (pathfinding for example). Is there any way we can write / talk about some solutions you found? It would REALLY help me out, because i really dont know where to start with this.
Again awesome that there is another programmer, who programs a promise looking RTS with Unreal 
Best Regards,
Maff