If you are a SCW fan you are lucky, Warmodelling miniatures has realeased this month of january a rulebook that adapts Flames of War to the Spanish Civil War.
It is in english and spanish, so it will be easy for you even if you dont speak the most beautiful language of the world hahahaha
Warmodelling has also realeased a whole range of 18mm SCW miniatures, but as I use to have a lot of leftovers at home, I ordered some heads to Peter Pig and I did some transformations, turning american, british, soviet and romanian soldiers in spanish ones.
You can read some extra information in my blog
http://thedarkestyears.blogspot.se/Infantry
Artillery