I think it would be better to have the prestige 5 if it happends only during the mission locked for the same ppl in the mission and make the player with the prestige 5 a way more increased rewards for doing the mission tasks, killing, etc.
Thats an idea
Other thing could be simply to removed the prestige lvl and make it into daily bar of lvl of how much you been playing during the day and keep the multiplier bonuses till the day ends and gain extra joker tickets, cash or standing every single stage till lets say level 5 in that way without becoming a bounty of course.
Lvl 1 = jtc
Lvl 2 = cash
Lvl 3 = standing for the last contact u just received the mission from
Lvl 4 = jtc + cash
Lvl 5 = jtc + cash + standing
Always keeping the multiplier bonuses on scaling by lvl as usual, till the day ends and it resets to Lvl 0 of course this replacing the prestige lvl and becoming a bounty
Since ppl get some money killing bounties having these bonuses i think it would be better
How would you trigger the prestige 5 in a district, i dont know, how about after being mvp for the next 3-5 missions conssecutivly u became a bounty for the opposite faction that way u jump out of the mission and u can fight :L unless ppl agree on totally removing becoming a bounty
Note: im just throwing random ideas :L