I am pushing every different button combination to screenshot what I am trying to say here, but it's not working, so bear with me 
Market Garden: East (assuming this is 'right' side of the map) side of the town, there is an APC/Kettenkrad. There are (3?) buildings east of these vehicles, one is bombed out, the rest are not and basically serve no purpose unless you're a tanker trying to sneak way around to the steel bridge flag.
I have pictures from my phone but can't upload them....but I took the time to go in single player and see what visual an AA gun placed between the broken building on the far east side of the city, against the slope, and the building just north of it would have.
What it can hit: Planes turning around/loopbombing the bridge flag and essentially the airspace that the AA at the church cannot hit, or has extreme difficulty hitting.
What it can't hit: Tanks coming across the bridge or the steel bridge pillbox, Axis planes taking off over water. The busted building south of where I'm saying to place this blocks the view of both the flag, other side of river, and Axis takeoff airspace.
Essentially this AA's field of vision would be over the city, and the planes turning around east of the city (east-west). Rarely could it hit the tanks passing by since there is such a small window for it to do so when the tanks fly by, and due to it being set in between two buildings, it can't hit anything that's fresh out of either base. Basically, you'd just have an AA that's good for one thing, hitting planes. It's field of vision is strongest in the sky (which is still limited) and it is impossible for it to be used to pound infantry and tanks. It would not be as dangerous as the AA at the church - it would be a 'wrong place, wrong time' for pilots looping the bridge and the center city flag, however.
This message brought to you by a pilot who has loopbombed that flag with little opposition and has also been loopbombed on the ground there with little opportunity to fend off the plane doing it.
I hope that all makes sense