We have enough guys running around with fake or repaired teeth. Why take a chance with your eyeball? Just think about shooting something like a grape with your AEG and you'll get the general idea.
All staff will always gladly walk someone back to the safe zone to defog.
As far as radios go, pretty much anything you find at any store will work just fine. There's a large gap in quality, anything more than your bubble-packed Best Buy specials suddenly is in the $150-200 range and you've gotta start learning things like MURS, GMRS, UHF duplexing, and other boring details to make an informed purchase.
Goggles should say ANSI Z87.1 stamped on the lens, or a similar standard.