6800 is low, the games standards are low, what they same the game runs well at is just wrong. should be 10,000+. E.g. My benchmark is close to 16,000 and I don't have the issues you guys are having.

So there are a lot more problems here than just netcode. Netcode is an issue, and ok, you see dieing from 200 dmg after a 400 heal because it thinks you died before the heal but you see yourself dieing after the heal, that's all lag. Netcode might be bad, but with a beefy enough system it's not nearly that bad. I've never seen anything like that. The only issue I've ever had in any encounter is when their is a server wide spike where everyone is going "Man did you see that giant lag spike", "Yeah mean, wth".

If your running extreme settings at 6800 you should drop to standard so you can get up over 10,000.