My second play of this scenario. See previous AAR for my first play.

I learned from my mistakes this time. The Australian reinforcements split up, moving one hex each North and South of the trail intersection. Both platoons, along with their Lieutenant, were overwhelmed and wiped out, but they managed to hold the trail open long enough for the entire main force to escape, giving the Aussies and six-to-four VP win.

Probably won't play this again now that I've figured it out, but it's a neat little tactical puzzle.