Angel Barracks now has Future War Commander in stock, the rules are also on their website.
From their announcment:
Some of you may know Angel Barracks as 6mm, more specifically as 6mm Napoleonics.
Well, not so,
We sell paints and dice and rules too, but of late we have been concentrating on 6mm sci-fi.
So it made sense to start stocking some of the most popular 6mm sci-fi rules; Future War Commander.