Or raiders too I guess, but I don't personally play antag.
But yeah, I can deal with every other character fine, but Hans is the only one that causes me major headaches. So much so, that I actually play like a try hard against lower level Hans players SMH...
I know it's characters/weapon dependent, but any general tips/strategies on how to deal with him?
Hans is very dependent on his weapon. All of his DPS comes from a very short amount of ammunition. He is one Raider that you'll want to utilize short-range tactics and cover the most.
As a Hades he is not going to be someone you want to start a CQC with if you can avoid it but getting in close with powerful short-range guns can be very effective against Hans. He will probably have no other choice but to fly away.
Never underestimate a flying Hans. If he is not under fire and he is flying then he is scouting the area. If you take cover then you can almost be assured that he will fly around/over to get a good shot at you. You might mistake this as the time to assault him, do not do this. Instead, start your maneuvers; re-position yourself and make sure he wastes his fuel.
Hans is only really devastating at mid-range. Wait until after he fires to start any sort of assault, he will have to reload or make do with a very short magazine, that is your chance.
Like HIVE you do not want to run up to a wounded Hans unless you know they have expended their ammunition. They will devastate your arrogance and flip the tables on you very quickly.
If you can survive a few exchanges of gunfire between cover then the Hans will have no choice but to start a CQC or find a better angle as their ammunition is limited. Again, never underestimate a flying Hans.
Outside of his gun he has little to offer a fight, though. So, utilize cover and force the flight. This will give you an advantage when they run out of fuel.