Bug? AAA fire from emplacements

[Kiwikkiwik]

Well I see the value of repeating what I do, the USMC 1.1 emplacement long range shooting was a fluke it does happen but only very occasionally. I will be more thorough in future. I am learning.
I lined up 4 dug-in twin 25mm AA and 4 emplaced twin 25mm AA and shot at them from 150m with 30 cal MGs. In 2 turns the 4 dug in AA were destroyed in 4 turns the 4 gun emplacements were undamaged.
So a dug in AA gun is not a substitute for an emplaced AA it is much more vulnerable because the turret armour is 0 while the emplacement turret armour is 1.
So the emplaced units are very valuable when the enemy has air superiority, because they are much harder to destroy.
Maybe change fortification class so it fires at greater ranges and put all the AA into that class and put non AA units from fortification into bunker class?
For the Marine and German OOB the bunker class is empty.