Reading the Wiki Article it states that
So WI by Operation Bagration the Germans have an additional 10,000 88's on the eastern front?
By August 1944, there were 10,704 FlaK 18, 36 and 37 guns in service. Owing to the increase in U.S. and British bombing raids during 1943 and 1944, the majority of these guns were used in their original anti-aircraft role, now complemented with the formidable 12.8 cm FlaK 40 and 10.5 cm FlaK 39. There were complaints that, due to the apparent ineffectiveness of anti-aircraft defenses as a whole, the guns should be transferred from air defense units to anti-tank duties, but this politically unpopular move was never made.
So WI by Operation Bagration the Germans have an additional 10,000 88's on the eastern front?