PTT - How I would love to be in your chain of command to bring to bear some of your 'reasoning'.
I say again being grossly overweight suggests a supreme lack of self discipline. That is very hard to argue against. If people wish to smoke or drink - that is up to them and (surprise, surprise) the forces also have rules for that.
And Brian, having worked with the US Marine Corps, their exceptional professionalism and bravery under the conditions they have fought under in Iraq over the last 4 years on tours up to 15 months long is something that you will obviously never understand.