Blatant cheating. For 3 months, Gumi received reports of a guild hacking their GvG wins using injection hack services. He (using bots for the guild) finally reached top rank and left trolling remarks for the community. There is absolutely no integrity from Gumi here. I've been playing since day 1. I'll amend my review if they address the situation, but they can't make this right anymore. Edit: The cheater revealed his methods on reddit, with proof, after 4th month. Will never play Gumi again.