Who the hell would break in and steal airsoft stuff?
Your better off looking for some hooligan kids than a serious criminal.
seriously, go check the alleys behind the schools and your local games.
honestly, best idea I've heard serious criminals would never waste their time on airsoft stuff and as a 13 year old kid, a lot of people around my age(13-15) sound like thee ones who did it. Ya know, the ones with nothing better to do on the weekends. These kids would know better than to use them at a pro airsoft game. but like exarch said, they probably would use them at games with thier friends in unorganised games behind schools and buildings.