It's really out of fashion, but IMO if you're looking for short range handheld outdoor comms, you can do a lot worse than CB. Most modern handhelds give you 4W without licence and with comparatively little regulation. Almost nobody still uses the UK allocation, so there are no, or at least very few, idiots to contend with. External antennas are an option (if not always a great idea) and you can fit compatible units directly to a vehicle if that's helpful.