Leader: Can add/remove players to clan and change their rank. Also it can (but doesn't work yet at the moment) check clan messages and edit clan's details.
Chairman: Can add/remove players to clan and change their rank if their rank is below his. Also it can (but doesn't work yet at the moment) check clan messages and edit clan's details.
Lieutenant: Can add/remove players to clan and change their rank if their rank is below his. Also it can (but doesn't work yet at the moment) check clan messages.
Veteran: Normal member of a clan - he can't invite new players or check clan members/change clan's details...
Rookie: Normal member of a clan - he can't invite new players or check clan members/change clan's details...