Most airsoft/paintball fields will allow ballistic goggles, just not safety lenses. If they don't allow it, that's their thing. There are some pretty good paintball goggles. Try the valkan tactical ones with thermal lenses. They're low-profile and don't fog easily. Paintball goggles by a paintball company but designed more for airsoft.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē