User blog comment:SSDGFCTCT9/New Modern BF Game/@comment-24476373-20101221191821/@comment-1427137-20101222013138

I was basing everything off of the cutscenes in BFBC2. As I said earlier, I thought involving France and Germany was pushing it (I would put UK in there anyways, considering they have a really sophisticated armed forces). Considering Russia, in the cutscenes, didn't get even past halfway of China, it didn't seem "appropriate" to put Australia (not that the idea's bad).

One of my biggest motivations of making this blog was to make a new game involving the fronts not featured in BFBC2. The more I thought about it, the more I thought it was retarded that BFBC2 involved the United States against Russia exclusively. I mean, you see East Asia, East Europe, and North America (mostly Canada & Alaska) getting invaded, but you don't even talk in the slightest about what happened in these countries? WTF?

So, this goes to say, in simple response to your question, I did not put Australia because it wasn't featured in BFBC2.