Gila's instructor credentials include Staff Instructor for the Lethal Force Institute, certification through the National Law Enforcement Training Center, the Heckler and Koch International Training Division, Washington State Criminal Justice Training Commission's Police Firearms Instructor certification, American Women's Self Defense Association, and the National Rifle Association. Twice, she has taught at the annual training conference of the American Society of Law Enforcement Trainers and has presented at the International Association of Law Enforcement Firearms Instructors' regional training conference.

A free-lance writer, Gila is author of the book Effective Defense, field editor for Women and Guns Magazine, and has work published in Police Magazine, Handguns, NRA American Guardian and Woman's Outlook, American Handgunner, Gun Week, GUNS Magazine, Combat Handguns Annual, Glock Annual, Smith & Wesson Annual and others.