Very easy to get with two players:
1. Join the same word with your friend.
2. Add him to your team.
3. Take over a Workshop
4. Search the area for a locked box/chest/suitcase with standard Fallout 79 game text over it, but the font of this text will be RED.
5. Open it and you became a wanted player
6. Now your “friend” 😊 can kill you and he’ll get two trophies: “Bounty hunter” and “Kill or Be Killed”.