Thought I'd point out a few things. If you check the photo, the soldier hasn't folded down the vertical foregrip on his AUG. He's trying to shoot it like a conventional rifle. It will work, but sooner or later (probably sooner), some sensitive skin will come in contact with a hot barrel and he'll be sorry.
Another little tidbit. I cut a photo out of USA Today earlier this week. It also showed an Aussie peacekeeper in East Timor. But he had a Colt M4 with an Aimpoint red dot on a flat-top receiver and the fore-end had the Knight RIS rail system with a vertical fore-grip attached. I expect he was in a more elite unit and had the opportunity to get the Colt. There must be something about the British Commonwealth and bullpup rifles. The Brit L85 is a boat anchor, and while the Steyr AUG is a fantastic weapon, the Australian built version has had a lot of problems. Poor manufacturing and quality control.
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Dorsai
Personal weapons are what raised mankind out of the mud, and the rifle is the queen of personal weapons. The possession of a good rifle, as well as the skill to use it well, truly makes a man the monarch of all he surveys.
-- Jeff Cooper, The Art of the Rifle