just come closer to the unknow person to know his name. it's like russian roulette where you may :
1. Found your friends
2. Found unknown species holding a rock
3. Found unknown species holding a rock but will hit you into pieces
4. Found unknown species holding a rock and he actually have a shotgun but he is friendly
5. Found unknown species holding a rock and he admit he is just a new spawn and will stab you with his handmade shell from behind
6. Found unknown species wearing leather vest, oh wait it's a zombie that looks like humen wearing leather from far.
I dont agree with this at all because :
1. Bandits gonna be hobos soon as people will recognize them and what can they do? sitting below the tree with " Will work for food " ?
2. Rust will become The Sims 4
3. much more
I've talked about this before, such as the 'tag as friendly' solution. But that one is better for other purpose such as tagging will let you share door permission and maybe house ownership/partnership.
For now, what we need is unique identification. You know, facial stuff. And it's already announced on playrust.com
Player Customization
We skipped this completely on the first run at the player model because we just wanted something that worked. Customizable faces, beards, hair is something we’re in early talks about. It’s not as huge priority as other stuff on this list – but it’s something we’re basing decisions on.