Yeah I'm not a fan coz I spend the whole time going around in circles. And some of the quests are annoying due to difficult/impossible to find without a guide. ******* lemons.
I've killed 1-2 so far (one actual gun fight, another avenging someones death while he was looting), even when I knew someone was waiting/camping I still got killed lol, but that death was avenged which was nice.
I found my weapon of choice: recorder

no one kills me now, they just get down to the groove

That and take the high ground standing over the whole map with a sniper rifle, people think wow that guy mean business, until they hear the recorder
I helped kill a Rocketeer then fell off the roof playing recorder, somehow still alive, guy said 'meet up' so we did, we went around the map unlocking all the secure lockers, gave me a ton of nice stuff! I also shot a rocketeer from waaay the other side of the map and got a steam achievement.
edit: 3rd kill! killed my first leaper, there was someone helping toward the end, but he didn't come out from his shelter to say hi so I did not trust him, and I was right, he nearly got me while looting, next time I'll take a smoke grenade for those encounters. I soothed his passing by playing the recorder.