Running around and killing other players in free roam is not even remotely entertaining or challenging.
* No skill
* No risk
* No reward
Solution - Join or start a crew and be creative.
Yeah killing people in a crew is a lot harder than doing it solo. I agree.
My favourite thing is shooting people while sitting in a riot van. Then once they finally blow me up and get a BS warning I go into passive and call another riot. Once I get in they can't shoot me through the windshield but they can blow me up resulting in another bad sport warning. Many lulz in the messages afterwards.