[TDR]

In my original post I was referring to units not weapons.
Also out of that list of weapons all bar Weapon #013 - 1.5 pdr AA-Gun and #017 - 2 pdr AA-Gun are mounted on some form of self propelled vehicle, track wheeled or boat.

With respect to Units the only direct anti aircraft artillery pieces are:
Unit #205 - Static AA Gun from 30 to 49 with 3in Vickers AA
Unit #367 - 1.5pdr Empl from 30 to 49 with 1.5 pdr AA-Gun
Unit #64 - 2pdr AA-Gun from 30 to 49 with 2 pdr AA-Gun
Unit #265 - Inf AAMG from 30 to 49 with .303 Bren AAMG

Renaming the 2 Pounder Anti-Aircraft Gun as a ‘40mm Bofors AA’ implies it has the characteristics of such a weapon. The 2 Pounder Anti-Aircraft does not according to the weapons values in the Weapon table.

By 1942 there were many 3.7 inch heavy AA emplacements and Bofors 40mm AA guns though out Australia and PNG. Yet the Unit table would suggest otherwise.

The Bofors 40mm was being operated by the 4th Australian Light Anti-Aircraft Regiment in Syria in June 1942 and Egypt August 42.
In 1941 the 2nd Australian Heavy Anti-Aircraft Regiment was operating 3.7 inch Anti-Aircraft guns in Syria.

It has been indicated that the 2 and 1.5 Pounder Anti-Aircraft guns were somewhat obsolete by the start of WWII but they appear to have run the full course with no replacements or additions in this particular OOB.

As we appear to have different points of view on this it seems the simplest to leave this OOB collectively as it stands.