Haylez, I know hun, it isn't fair... but if you really want this Army position, you're going to have to do what they ask. It's the same with the ridiculous VCE/HSC scores you need for medicine at uni, it's not fair, but it's what they ask. I suggest you work out what you'll have to do to make the requirements instead of criticising the system.
I am your height, and I am aiming for the lower end of the scale. The highest I've ever been is 65kgs but I looked really unhealthy at that weight. That being said, I don't have DDs, but I doubt boobs weigh more than 5kgs... Random question- how much do boobs weigh? LOL