I've not had much experience of them first hand, except for a couple of them I met donkeys years ago in Colchester. As far as i know, they were attached to the ANZAC branch of the SAS, training with Air Mobile running up to the second Middle East invasion. they weren't the type of cunts I'd have wanted to fuck with. One of them told me that the Maori had selectively bred soldiers for millennia, selecting the bloodlines for size, strength and aggression.
That would explain Jake Heke. The bar fight scene in that film is, in my opinion, the best piece of choreographed violence in cinema. Have you seen the sequel, 'What becomes of the broken hearted'? Nowhere near as good as 'Once Were Warriors', but worth watching if you've got fuck all else to do.