Well I was kinda bored and looked a little bit into the s4 game info (https://s4league.aeriagames.com). And some stuff is way too outdated. I'm just posting some examples because it is self explaining more or less.
http://s4league.aeriagames.com/game-info/game-modes Game modes missing
Maybe update it. Well the event calendar is up to date since I pointed that out and haven't seen so far something missing in it so to that^^