Again, the operative term here is "no proximity fuse". History (or perhaps The History Channel

) has exaggerated the AA effectiveness of the 8.8 flak, whereas in reality it was it's direct fire capability against armor that gave it it's fierce reputation.
For base defence vs vehicles I'd say place a few PAK 40's around the perimeter of the base in prepared defensive positions giving them both cover and armor.
I like this idea, but with one suggestion. Instead of armored positions, position the guns somewhat randomly around the base/town and give them good concealment from the air. I'm thinking this would be more in line with actual wartime practice than armored positions. In any event, it would definitely make enemy armor pull up short and survey a base/town
really closely before racing in like they do now.
