Queensland, Australia

Recreation scenes will most likely be filmed in the jungle areas of Queensland.

 Fraser Island, Queensland

Fraser Island was a training facility for Z Special Unit during WW2, filming on Fraser Island would also take place during the production

Secret Special Operations Australia WWII commando training footage

https://www.abc.net.au/news/2015-04-06/secret-z-special-unit-wwii-training-captured-on-film/6371730

Victoria, Australia

Australian Commandos trained at Wilson’s Promontory in Victoria, filming would take place at this location combined with some filming around the Otways for recreation scenes.