Something gets mucked up along the way.
The japanese colonel surrenders, and then...what? Next time we see Nolte he's surrendering himself and the col. to the Aussies. Sure, he renounced violence earlier, but he hated that Colonel, right? It's like significant chunks of the plot were axed. The cannibilistic actions of the Japanese were just a throwaway line. The African (McRae) and the remaining Aussie (or was he a Brit?) staying with Nolte...
And did Nolte's character spend a lot of time shaving or what?
Also, Nolte at times almost seemed a bit campy, like he was a doing a Braveheart parody some 6+ years before Braveheart was released. I suppose that fit with his quasi-madness.