Anthony, I found this gentleman listed online as a contact for their unit vet association. I have no way of knowing if they are still active, but he might be worth a try.
752nd AAA Gun Bn Mr. Frank Salas 2129 Belleview Ave Kansas CityMO 64108-2246 (816) 471-2049
GO 33 WD 45 is General Order 33, War Department 1945. You see it referenced in many discharges. It is simply the general order which authorized official campaign credit for the the battles/campaigns listed on the discharge.