Gang system: Yes I agree.
Fix fed door: 100% this, delete inner dome or repair the door issue - It seems as if it's been set to have no animations.
Better loot at airdrops: Kinda sorta, I'd see it increased to more players required or that you need to break into it.
Patch common duping methods: Hit me up with a message about these - I'm not aware of any.
Remove buildings at Reb South: This the constant exploding thing? More of a safezone thing than anything.
Closer spawns to OG: I can see spawns at capped zones working out - But only while uncontested / no enemy within distance.
Increase safe zone at Market or make it less campable: I'd like it removed personally.
Reduce insurance amount: Haven't really used it, what is the cost right now?
Increase FPS: Can't say much about that.
Remove USB stick: Either remove it or increase the spawns for it / make it purchasable.
Reduce major bank cooldown: I see no problem here, but I'd add requirements for robbing them instead such as blasting charges / bolt cutters / virus USB.
More incentives for gangs to stay: Working on above issues will remedy that.
Can't hit second teller if cops log off: I can see why that's an issue for Civilians, Cops hit first teller, die and then log off and win by default.
You spawn in the floor in long brown houses: I haven't seen this with any of the stone houses I own, may be a one off house at a different elevation?
If teller dies before timer at third party banks no one can get money: Can see why that's annoying, adding the requirements such as blasting charges / bolt cutters / virus USB may fix that.