Didnt the AAAF rules provide for anti-air emplacements?
I don't know much about the AAAF version of the game, so not sure if they have rules for AA emplacements. For my design I will use WaS rules for naval battles and AAM for land battles. I'm going to avoid using AAAF rules to simplify things. But if they do have something covering AA emplacements then perhaps they can be translated into a land version rule.
They do, I don't recall exactly what they are now, but I used them for AA from Arizona in a Pearl Harbor sim a few years back.