No need for a military discount, they have Shades of Green. And as others have mentioned previously, supply/ demand, why offer discounts for the Fort when you can fill it for regular price. Until Disney prices everyone out of their range, there will be no discounts or offers. Now conversely, if everyone stopped camping there or if there was a serious decline in use, they might. But then again, at that time they might just use the space for some more DVC buildings.