The Japanese will take terrific losses in stride as their morale permits them to stand up to direct fire. If you can't knock them out with opportunity fire and they get into an assault position you are in deep trouble. In this scenario the Japanese pinned the Aussies with assaults and then sent their larger numbers to flank the position, as the Australian morale started to crumble the flankers were in position to take their toll of the retreating demoralized units. They were easily able to get into the village given the disruption within the Australian force.