http://www.military.com/news/article...=1186032369115April 29, 2011 - Army News Service
FORT SILL, Okla. -- The Air and Missile Defense career field realized a significant milestone Friday as Staff Sgt. Jessica Ray became the first woman to complete the arduous 166 hours of formal training in the six-week Avenger Master Gunner course.
a Wikipedia article on it and a guide to do it in Photoshop. I hope these links helped
Modernised Serbian SA-3
Serbian Bofors 40mm