I'm wondering how other players are detected, is there a mini-map that shows all players nearby like some MMOs or will players be hidden until you see them? Will their identity hover over them constantly or is their a way to hide it? I want to know how sneaking up on players or hiding from a group is possible.

I'm wondering how other players are detected, is there a mini-map that shows all players nearby like some MMOs or will players be hidden until you see them? Will their identity hover over them constantly or is their a way to hide it? I want to know how sneaking up on players or hiding from a group is possible.