Robert McCloskey did NOT write the Milne Bay scenarios for Kokoda Trail, it just seems that way. The book Homer Price by McCloskey (a children's book, my wife is a teacher and one can never get too far from elementary and young adult fiction in our house) includes a vignette about a salesman who sells a product called "Ever So Much More So" which makes everything just so much more of exactly what it is.

This scenario is just ever so much more so in comparison to the preceding two. There are more Austrailians, more Japanese (the entire countermix of SER and SNLF troops) and there is simply no real way for the Austrailians to hold out. In the end result, the entire battalion of Austrailians was crushed under a wave of Japanese. A coastal drive and a force sent over the mountain both met at the village and the Austrailians despite a heroic stand along the trail were overwhelmed and at scenario's end had only one demoralized platoon trapped along the coast and a lone leader looking desperately for someone to lead.

Again the tension was much higher mid-scenario as it seemed as though the flankers would never get into position but ultimately they did and the result was the complete destruction of the Austrailian defenders.

The history of these three scenarios includes a constant escalation of the committed forces but the Japanese had the ability to ramp up much quickly and the Austrailians simply didn't have the forces or heavy weaponry to make a difference. I give it a "4" for the scope of it.