Was going to start a new thread until I found this one.
A vehicle worth having more of them made than the Ostwind & most likely Wirbelwinds as well. With an impressive kill to death to boot.
Telescopic sights also until later due to fogging they changed to a conventional sight.
Has a long service history.
I am not sure on the early war time frames of AHII it would at least cover mid & late wars. If it can qualify for early war would be far more deadlier than the current M16.
http://www.antiaircraft.org/T28.htmGoing to have to find some more on the Australian made M15 specials mentioned in the above link.
One way to get some Australian made stuff in to AHII.