I've been solo vigilante in the DZ
I've been farming NPC DZ gangs solo, except the sports store where I've only killed about 6 of them before some other people turned up. And I hang around at extraction points waiting for things to kick off (almost continual extractions late in the day). The classic M1A sniper rifle is generally very useful: there's no ballistics to worry about nor percentage chance to hit: it always hits hard
Though it's very difficult to use at night in a snow storm
Yes, sometimes I clip someone's shoulder and accidentally go rogue. Yes, sometimes player gangs will just instakill me for being there. But I don't have any DZ loot, so I don't lose anything (well except for DZ XP and DZ credits).
The Safe House is quite a good base. Although sometimes you can walk out the front door and find yourself being shot from two opposite directions by the two gangs that are both within about 100 metres of the front door. This is good practice. I want to have a go at sniping from the Safe House scaffolding.
The mini turret is good fun and it works well in distracting one or more enemies while you flank the fuckers. It also seems to be a good strategy to put down a turret when you have attached loot for evacuation. It'll fire up as soon as NPC enemies arrive and it'll also shoot any rogues, working as an alarm if nothing else. Depends on the layout of the extraction point, of course, since it needs line of sight and has limited range.
Some of the environmental sounds, at least on my headphones, are super convincing: car alarms and certain kinds of humming noises have had me taking off my headphones to check WTF is going on more than once. But distant sounds in the streets are far too directional to be "realistic", instead the sounds should be bouncing off so many buildings you can't tell where they're coming from.
If you're no good at PvP then I dare say stay away. Some of the NPCs will chase you out of a building and down the street, and then throw a grenade at your still bleeding, barely living body once they've knocked you down, which is very unsporting for NPCs
Today I'm going to have a go at solo looting the DZ.