There is a halo clan called the Flood. They do to two things to gain new members , one of them is the most surprising for me is that they have recruitment servers , and the second one is that they will try to kill people in costum servers , mainly recruitment servers, usually if they kill a person has to join there clan, but there a few players who refuses to join these cockroaches, people call them the immune. So if you see a person on a costum game wearing teal colored armor, be careful and if they get close to you shoot without hesitation. Now take my warning to heart , be careful when there is a flash flood in Halo!
Clan drama isn’t really something that needs to be discussed here on the forums