I did it in 2001, went to 7 SigRegt (EW) in Cabarlah, Queensland. It deploys usually mid May for about 4 months (unless you get delayed in Sydney for 11 days on the way back ) It is usually open upto Sgt (occasionally SSgt/WOII) and up to Capt but usually Lt. I had a great time and would go and live in Brisbane now if I could. As for application, I fell on my feet and phoned HQ Land direct , got in the poo a bit, but was worth it, I am sure you'll agree) Getting it is rarer than hens teeth. Any questions PM me.