LIKE...
Squad Chat: It could be like a normal team chat but only your squad can see it.
advantages: things that your squad don't want to share with the team and don't have another communication system.
disadvantages: I do not see anyone...
Clan Chat: Like the team chat again but only the clan members could see it.
well this would be more complicate, because it needs a registered account and a official clan
I am getting ideias