I like the idea that Aussie soldiers are more inclined to tell the brass to go fuck themselves when it comes to rescuing their comrades. No idea if there's any truth to it, but the idea feels very Australian.
It's very much one of those "300" style stories about a smaller group of soldiers trying to hold off an enemy vastly superior in number. Nothing revolutionary about it, but a fairly entertaining film about one of the times Australia has blindly followed the US into a war that doesn't concern us.