AFAIK, Disney never lets you stack discounts - you only get one per purchase, so you have to choose.
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DVC AP/PAP discounts are off gate price. There are also discounts off Florida resident AP/PAP prices, but the amount is smaller. Out of pocket costs end up the same.
Anyway, it looks to me like the DVC AP/PAP discount would be a better deal for you than the Military discount.
AP/PAP Price Comparisons
Best wishes -