In the final year of WW2 the LW began massing their AAA at the larger bases and massing their air units there as much as possible. Allied fighter-bomber raids were so numerous that having 4 or 5 'decent' defended bases (in terms of AAA coverage) meant you were going to have those 4 or 5 be swarmed and leveled. This is why you see accounts of dozens of AAA sites at LW airfields.
It is true though - the average airfield in AH has far fewer AAA weapons.
This biggest 'problem' (needs to be fixed, but would take alot of effort to get 'right' and AH2 is a more pressing 'to do' list for sure) is that the 'attack' pilots in AH know the exact position of every fixed AAA unit at an airfield. Counter AAA missions were very rare in WW2 except as done by the LW on the Eastern front (SG pilots went through a great deal of training in the supression of AAA with cluster munitions). Most of the time an attack pilot was not going to make multiple passes on the same target if it had decent AAA defense. So on that one pass he's going after the primary target. The airfields in AH, ideally, would have large areas of camoflage netting 'clutter' (picture the VH netting effect over the fuel tanks, all bunkers, and 10 or 12 'VH' that aircraft would roll from. There should be 10, 12, maybe as many as 20 'camoflaged' AAA positions. If there is only 4 or 6 active AAA weapons at an airfield, the positions they fire from should change ~1 hour after the most recent attack on the airfield.
"Just an idea"
Mike/wulfie
