Board Thread:Questions and Answers/@comment-49.204.141.77-20160117191103/@comment-25669516-20160120033329

On Android all top gangs are currently ghost since they were made by hackers who then got banned/stopped playing. So there's no way to tell what's going on with them and no way to join to get rewards. There are still a few gangs you can join in the top ten which will unlock all gold weapons for you to buy but that's about it (Crazy American is one of them. I think half the people who play Six Guns are in that gang...)

Leagues and events disappear  randomly after every few weeks or so but it hasn't been permanent yet. And like Kev said, even if your league doesn't show your points will still increase or decrease depending on how you play. So yep, if you get killed a lot then chances are your league will show a decrease in points when the league system returns.