According to Doctrines with the Arty Experts the Officer gets 10% buff.
I made a test with flak 36 to see if veterancy and officer supervision would work on it. One thing is clear. The 88 vet describtions are already old and needs to be changed.
However.
With Artillery experts affecting Officer Supervision, the 88 should score from 225 damage to 292 damage pershot. However, it still deals 225 damage pershot.
I'm not sure is the cause in the Arty experts or is it in the coding. It seems that the buffs are not applied to the gun itself but to the crew however this is just a wild guess.
I'll upload the test video later on once I get the replay once more. I did give it to Firesparks and to Groundfire. If they would kindly post it out here if they want to
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