You are correct about the German 222's having AAMG's. I had been looking at the other nations that have them set up with CMG's but it was the German ones I was testing that generated that message. My only excuse is it was the middle of the night I was looking into this as it is now
There are randoms built into the various codes so that results are not 100% predictable and this is why if you save a turn then play then load the save and replay it you will not get the same results exactly. I just ran another turn of the test game that generated that message and I did not see the 222's firing at the Yaks that attacked but on the next turn they did multiple times
BUT........WHY are you deliberately using a "small map" and how small is it and what other terrain/trees/buildings is on it? If the map is too small there would not be enough time for the ground units to react to the fast-moving aircraft which would give you skewed results AS WILL the terrain that surrounds them affects ground unit's ability to react to air attacks so any tests to just see if ground units will shoot back needs to be done on a flat map with no trees or buildings to obstruct LOS to give a fair test. Suggest 80x80 as that was the stock SP map size
We will investigate the WC 19 code in SPWW2 and I will investigate if the AAMG or the CMG for the 222's is more correct but
THIS PHOTO would suggest the secondary and primary weapons were linked so should be classed as AAMG's for this unit not CMG
I find it surprising that out of all the units in the game the unit you choose to question is one of the few units that uses a WC19 main weapon ( there are 16 of them out of 13,119 units in the game ) AND most of them assigned to that WC are the 20mm AC used by the 222.
Curious isn't it?
The bottom line is these are Armored cars with limited AA ability not dedicated AA vehicles. Their main use is against ground targets and if attacked from the air they *may* or *may not* fire at aircraft