If you are going this year and you/your spouse is on active duty, all you need to do is take a copy of their orders and all your IDs or kids birth certificates to the Disney gates and present them for the discounted tickets.  The military member is free...all others (up to 5) will be $99 for 5/days.  You cannot purchase these ahead of time or online.  THEY MUST BE PURCHASED AT THE GATE...this is for security and obvious fraud reasons.  I believe they may take pictures for the tickets as they can only be used for the persons listed on the tix and have to be used like within a 10 day period.  Hope this helps.

Oh, if you aren't using the 5 day $99 passes, just call your MWR office and they will steer you in the right direction.