The only thing I am working on right now is a config mod for an AH6. In my research I found out that the old "glass" in the bird had been upgraded, along with a lot of other things, IRL.
Sources state they have tried to protect the pilots from small arms fire. I tried all kinds of armor values, still experimenting BTW. In the Air.pbo, the only glass value I see defined is HitRGlass and HitLGlass. I was getting zero changes, that I could tell, by modifying those values. So I tried inserting a new class...HitGlass. Made a very noticeable difference. FWIW.