Don't wear anything - just join the fc. If you can't join and you're there, they will get anti pk teams to kill you if you are geared. So unless you are an anti pker that the anti pk team are aware of, don't wear any combat gear when youre not in the fc. They consider geared white dots to be a threat. That idea changes every 5 minutes. Indeed since I've been pked by them while not wearing gear all the time.