I know that one of the nice things about Flames of War is that there are many companies that make 15mm WWII figures. I know that Battelfront's policy once was that other miniatures were okay in tournaments, just don't post pictures of them on the forums. While browsing the internet I found this old story from 2012 which says that Battlefront had changed their policy on using miniatures from other companies.
However, upon doing further research I can't find any other reference to their current official policy. Does anybody know what the current position is on using non-Battlefront minis in FoW