Description, and Responsibilities of Various Armorer Rating during WWII

Descriptions, and Responsibilities of Various Armorer Rating during WWII

Here is my father's Certificate and I have his Enlisted Record and Report of Separation. He is listed as a Armorer 911 on his Separation papers. 
 
My father had Three years service and experience in the 11 TH Field Artillery from 1937 to 1940 before signing over to the 11 TH BGH in 1940. His prior training gave him a head start with munitions etc. He also was trained in Chemical Warfare.
 
The various Classifications seem to indicate a lesser or greater degree of training. When the 11 TH BGH returned to Hawaii from the Pacific in 1943 he was then used to train the NEW replacement Armorers at Hickam for their new B-24's. If I can reduce them I have four letters of recommendation for his promotion to Warrant Officer by four Officers I will post them.
 
A LT. John Krey who lives in Florida signed one of the letters called me a couple years ago. He asked me if my father ever told me that he was ordered not to fly as a gunner? I said no, LT. Krey said they had so few officers and few highly trained men as your father in the Pacific for Armament work their Commander ordered him to stop flying as gunner at the request of some lower ranked officers.
 
My father just wanted to go home and raise a family he had been in the service since 1937, he lost close friends within seconds of the Japanese Attack on Hickam. Once he had to go out to try to recover what remained of a crash bomber. He found a friend's jaw bone. For years he struggles with foot problems from fungus, diseases and the wet of the jungles they lived in.  Lt. Krey was still upset with my father for not signing over and he nicely told me us.
 
I dont know what the story is but after reading the training for the various Armorer Classification I think I would have wanted the 911 working on my guns etc.