The park offers a discount on multi day tickets- 10%.
Not much, but something.
Honestly, visit your base's ITT office. They offer all kinds of discounts on everything from shows, to theme parks, rental cars, hotels, etc. They will most likely have a discount on Universal park tickets.
My dad was in the military and when I was a kid and we'd go on vacation, my mom spent a lot of time in that ITT office getting show tickets, park tickets, and even booking cheap hotel stays. Some how, a lot of people know nothing of these....
If you get to Orlando and missed out on the ITT office, check out Shades of Green in person. They have everything an ITT office would have.
Good Luck!