Zulk - be careful of what recruiting officers say to you especially the green. Read link from Tony360 above.
Besides there is more to the RAAF than fast jets - P3's and C130's have been in the middle east consistantly for a long time, C-17's make a regular appearence. If you go army then and you fly chooks you go to the meao - every year whilst in the squadron, if blackhawk then timor, timor and timor. Go to MRH90/tiger then read your post about fast jets.
Last year the RAN offered anyone, including those with ROSO the opportunity to transfer to army or resign such was the backlog of people waiting for conversion.
It's a great start to your flying career but be careful what lines the recruiters feed you.