Actually, most people use cheap shitty FRS comms. Most people don't get much use out of their cheap shitty FRS comms beyond a couple hundred meters, mostly because they're cheap and shitty and they don't communicate anywhere NEAR the advertised "9.6km" range, which assumes a direct line of site with no obstructions.
All kidding aside however, if they are able to communicate using the standard FRS/GMRS frequencies, they'll be fine. Keep in mind that communications extends beyond you and your buddy - you generally want something that allows communication to anyone on your team/side of the game.
Some people use higher-end equipment, others use cheap stuff that meets their immediate requirement.
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