I personally would say that it would go for atleast 100k if not more. The only people that can get AMS scopes are Armed Response and they are pretty hard to rob.
I personally would think that you still need to wear it at all time since it says: " Bounty hunters must wear the bounty hunter uniform at all times while on duty. " I would think that you going "undercover" to get someones name and going around the corner would still count as you being on duty.
You could either verifiy game cache on steam - https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335
or
Reinstall the game completely
or
Try playing around with your video settings
or
Delete your Arma 3 profile and make a new one or delete the mission file of the server.
or...
Police Application: https://www.roleplay.co.uk/forms/5-altis-police-application/
Make sure that you are over the age of 16 or you can also go through the young recruit scheme if you are under the age of 16.
Young recruit scheme: https://www.roleplay.co.uk/topic/70994-young-recruitment/
You could interact with players in-game more and invite them to do drugs or such things and then there is a good chance that you might play together again. Then you guys could do the same with someone else and just make friends like that and then just make a gang with them. It shouldn't be hard...
You could try and use an ethernet cable if it is because of your ping.
If it isn't because of your ping then delete the mission file for the server or just delete your Arma 3 profile and make a new one.