How can I fast-track discharge and secure a dependent visa?

I am serving in the Indian Air Force and have applied for discharge twice, both times being denied with the reason "DEVOID OF MERIT." My wife is working in Australia, and I am the only son of my parents, who are on regular medications. My father has undergone knee replacement surgery, and my wife wants to settle in Australia. I want to get discharged, but I am left with no options in AFT or the High Court. If I go to court, it will take years to get justice. My wife and I have been married for three years, and we want to start a family, but the organization does not understand this. My wife cannot take care of the child alone in Australia due to strict child laws there. I now want to apply for a dependent visa (subclass 485) for my wife. Will this affect my regular service? Secondly, what if I am dismissed from service due to being AWL (Absent Without Leave)? Will this impact my visa process? Thirdly, how can I fast-track my discharge process?