Ok guys thanks but I think you're going on the wrong direction.
What I'm trying to say here is if the player completed my custom quest, it'll broadcast the player's name and there will be a "title" added before the player's name.
Rank 1 = Newbie
Rank 2 = Seasonal
Rank 3 = Addicted
Rank 4 = Pro
Rank 5 = God
If a player completed the 1st quest, the title "Newbie" will be added to his/her name.
eg: Newbie Player
If a player completed the 2nd quest, the title "Seasonal" will be added to his/her name.
eg: Seasonal Player
...
Also, I want it to be automatic not manually. Manual changing or customizing will be hell of an effort.
The quest will be a chain quest. You cant do the Rank 4 quest if you're currently on the Rank 2 quest.