My question is, how does this process work? I know that generally there is a court martial and then a prison term first, but is it possible for him to skip the prison term (no hard evidence) and just get kicked out? Can someone give me a general overview of the process from start to finish?
What would his life look like upon getting home (difficulties getting jobs, etc)?
I've googled just about every permutation of "dishonourable discharge," "court martial," and "british army," and read the Wikipedia article on Military Discharge (which seems to be focused on American military discharge).