7.62 has become a staple at this point and I don't see it leaving any time soon (ever).
Not allowing officers to be in gangs just doesn't make sense. There are already heavy repercussions for showing favoritism to gang mates while on cop. As to the element of surprise. Everyone knows what cops are going to do 90% of the time. Zerg until the enemy resolve is broken and they overwhelm them.
Prison changes are in the works.
Renaming bounty hunters, What you are suggesting would simply eliminate bounty hunting and replace it with a whole new profession. Bounty hunting scumbags are important balance to keep the law breakers in check while there are no apd officers available.