We must work the the core of this server, wich mean, website, forum and his own ladder.
External link are always flop and dont bring visibility at all, not that a kind of war clan is bad.
It could be an excellente idea for more hardcore player who got time for this game.
But the main priority is to work on the core of this server, make it relevant upadates and active.
Wich Mean, website, forum, and the main ladder.
This one: http://ladder.war2.ru/index.php
The goal here is not only to have challenge on the server but make it more profesionnal for new players.
Every serious game have his own proper website, forum and ladder.
Get this thing first right, then we can talk about advanced ladder.
Thats my opinion.