reason for the Australian and NZ censorship:
Originally Posted by Take Two
"...in regards to what Rockstar have removed for the Australian release, as far as we're aware there was only one sexually violent cut-scene which Rockstar felt would cause the game to be Refused Classification. Unfortunately we're not able to go into specifics until after the game has been released but I can tell you that the scene involves a weapon being inserted into an enemies private area during a mission where Niko is taking revenge after one of his close friends was forced into sexual intercourse during his stay in prison...This is what Rockstar felt needed to be removed from the game for its Australian release. We were recently given permission to release this information because as we understand, Rockstar originally made a press release stating that the game would be released uncut world wide. We felt it would be misleading not to release the information."