Most of it is skill and luck when you are fighting someone with higher gear. Get your regular archer and fight gear, and go and fight them if there are four or more then run into their pack or strafe since there are so many people would be an accident. Even if they are in a guild it would make it harder for them to hit you, then since your gear is infinite and they only have 1 or two sets of the gear just wear them down slowly no matter how many gapples they have. I am a good pvper and I can take down a full diamond guy. Most diamond guys I see either have one good geared partner, or a bunch of regular people wanting to help him. The diamond guys I fight are usually easy to beat and are cocky so I can take them out in the range of 0 - 3 deaths, but some of them are smart and deadly and they can kill many people with the combination of skill and good gear. Remember this though anyone can be defeated, maybe not today or tomorrow but someone, someday will beat them.
[DOUBLEPOST=1444175800][/DOUBLEPOST]If there are two diamond guys just get a team mate and split the two up.