It seems a little sparse
I like this song
but its a little to reverby take it out just a bit or just find a different way to use it.
Good vibrant melody just needs some sort of a feature some kind of a wow factor. I know you want it to be sparse. Seeing as you have this war zone story why not add sound effects of gun shots. and explosions and some really high velocity percussives to make it a little more interesting. Still a nice sound and a very decent mix. 7/10 4/5