Or just craftable flare? If you use it and drop on a map, the chance of being found rises.
In a day or two, nobody would use this feature anymore, and all work would be in vain.
Given Radio channels can be a possible 5 digits, thats an awful lot of possible combinations and factions would have a certain amount of security when broadcastingion their posit to allies. Other faction discovering their channel and ambusing them would just be another form of espionage and cant say it would be particulary easy to obtain.
So...Let's imagine this idea is used by a PK gang - dozen of gangsters, all 21st level killers and armed to teeth - to lure the inexperienced or lone-wolf players, miners or even smaller gangs by calling for help, and when their prey joins encounter, bringing them down easy.
Love it. If you want people to use radios, give them abilities that IRC channels don't have.
Yeah, part of me thinks doing it via coordinates would be easier. Hell, how about if any two players enter the same square in the map they're guaranteed to encounter each other? Or if they pass by each other while travelling?And yeah, I think combat is too fast for backup to work. Unless we gave doctors defibrillators (shock paddles) to bring back their buddies if they get there before the replication timeout. I like the idea of emergency medical teams/radio channels. Hell, even good samaritan groups helping out people on a public '911' channel. And then getting ambushed by PKers. Damn, that sounds fun. I now want to be a heavily armed wasteland paramedic. Turning up, guns a-blazing and electrocuting people back to life.