So one thing i noticed in gta v is cops AI is a bit too unrealistic in one way. like they would spawn too fast. even after killing soo many, here is my example i was playing as trevor no armor, free aim at 5 star wanted level, i was able to survive for over 8 minutes because i drove my boat in the middle of alamo sea, and just kept sniping depudies. but then there goes the helis, i would shoot one with rpg, and then next second goes another one and onother one. and it kept going infinite until i ran out of rpgs.
my problem is cops spawn too fast in gta v or atleast they are not like in RDR or even better like in postal 2 game where if you were too kill the whole Police department there would permentatly no lawmen to go after you. allowing to do anything you want in the city. which would be very fun if they added that in gta v.