The Japanese, in my second play of this scenario, did find and advance down the track to the hill. The US got some fortunate rolls, disrupting a couple Japanese platoons as they made up the hill. The Japanese high morale enable them to recover and then assault the US units. The crazy Japanese Assault values made the rest a forgone conclusion. The US did recover several demoralized units on the last turn, but not near enough to get victory. Japanese win.