First Murder is Free
One thing I hope is improved in GTA 6 is the logic for how wanted police attention is earned. Its almost never based on witnesses, stealth, proximity. Here's the most egregious example. On each fresh spawn (wake up in the hospital, fresh character swap), you can walk outside and shoot one person in the head for free without ever getting a wanted level. Walk out of the hospital, walk into the street, and dome someone in a crowd. No wanted level. Immediately shoot a second person? 100% chance you will get a wanted level. Walk out of the hospital and shoot 2 people with 1 sniper bullet? Instant wanted level. Car jack someone then shoot them? wanted level.
I hate that in a game supposedly about planning crimes, there's zero reward for doing crimes in a sneak fashion. Whether or not you get the police is a very simply like if/then table and its super soulless. Hell I don't even know if suppressors on guns fucking do anything.