Unless things have changed recently you are unlikely to get a discount from Disney. Even when working in Centcom plus a letter from my 2 Star Gen (US Army), Disney said no to discount. At the main entrance they even have a sheet showing the IDs they will accept (US Mil Only), they wouldn't even accept my US issued ID. Busch Gardens on the other hand was free for the family plus 20% off all consessions in the park.
Maybe things have changed this year?