Well, if you are going to do a science fiction wargame, there is no point in fighting through a complex rules that simulate something we can no nothing about.
May as well keep it simple, and rules don't get much simpler that Songs of Blades and Heroes.
It was a battle of the franchises with Mark's Trade Federation versus my Starship Troopers (we heard that service guarantees citizenship). By in large the Trade Federation droids has high Q, while the Troopers have high C and longer-ranged weapons.
The one deviation from the standard rules, borrowed from Flying Lead, was that groups can be formed by characters within a short distance of each other, instead of in base to base contact.
More on my blog:
http://macslittlefriends.blogspot.com.au/2014/06/songs-of-blades-and-heroes-in-future.html