Promotions in the normal ranks will only be given by the Emperor and the promotions are based on: Time in guild, loyalty, level, friendlyness and helpfulness, bribes, participating in guild events and raids and so on...
The normal guild ranks are:
Emperor
1 of 5 Kings (5 members that are the Emperors most loyal and trusted members)
Royal Commander
Guard Captain
Guard
Soldier
Peasant
Scum Bag (worst of the worse)
While there are two pvp ranks:
FUBAR Champion (only 1 member per class can have this rank and is the best of his class)
Contenders (these can challenge the FUBAR Champion for his/her title by duels)
A contender can challenge the FUBAR Champion in a duel (two times a week max unless the champion wants to duel more), in where the Champion decides the rules (example, rogue vs rogue could be without any stuns) and the duels are done in front of the Emperor or another Officer to make sure people follow the rules and who wins. HOWEVER, duels can be made without anyone watching and if the champion is defeated he can let a officer know of this and will by doing so give his title to the one who defeated him. Be warned however that if no one is watching you will have to count on the Champion of being honest. Champions can decline a duel, but declining alot of duels will cause him to loose his title.
In respect and honor, a FUBAR Champion have the same as 1 of 5 Kings, while Contenders are like Royal Commanders.