The ability to use a locator to find various resources strewn throughout the game. Example: A player equips their geo locator to find minerals, objects of desire, water etc. It will guide them to the location to retrieve whatever item it is. Maybe the geolocator would give the players various details of said and multiple items it detects, such as, amount of resource, type of resource, current value of resource, etc.
In multiplayer, the geolocator and geocache box/locations could be used to locate objects other players add to the map. Example: A player uses a geocache box to drop items so other players can find them with a geolocator and use them, like money or entities, weapons, whatever.
*One train of thought is, other than it being fun to use singleplayer, it could also be used multiplayer to find mines and stuff like that. Or maybe the player gets distracted by a geocache location and goes after that instead of doing what they are suppose to, like sticking with the team. Things of that nature.
Basically, it's a metal detector that finds other things in the game. And it is a mini game, it would be possible to create a game based just on that one tool, and a basketful of assets.
Thanks