Ranks/Reputation/Bounty

There are ranks on One Piece Online shown above the heads of players, depending on the faction you choose, pirates get the option to raise their Bounty, for how much they are worth, meanwhile Marines raise reputation.

What does raising your reputation/bounty do?
If your a pirate, it will do nothing except marines will have a reason to kill you should you have a high enough bounty... and as your bounty go up, your rank will change as well. However, as a marine if you take down enough pirates you will raise enough reputation to get Rokushiki, and also it will change your rank as your reputation goes up.

Facts/Need-to-know stuff about Ranks.
Some pirates or some marines can have special ranks... this is because they are stronger then others and are given special ranks by the owner of the game(or admins of the game) In the example photo, the rank shows "Supernova" which isn't achieveable by bounty, but only by given it... for pirates, the only ranks are given...

Supernova

Shichibukai

Yonko

Supernova is a title to those who are new to the game, and are already considered "dangerous" since DreadFate only joined the game recently, He was given the supernova title... another way of earning the supernova title is by getting over 100m bounty and asking an admin for Supernova... the only way is to prove how dangerous you are, due to DreadFate being a very dangerous threat to the marines, he was a instant supernova regardless of his bounty.

Shichibukai are pirates who can use the marines authority whenever they want for any reason that they would normally wouldn't be allowed to do and the marines will allow it, in return they have to answer the callings of the world goverment/marines for meetings, gatherings, defenses, raids etc... shichibukai are known as "lap dogs" in some cases.

Yonko is a title to those who are very experienced at the game and are very hard to beat, there can be only four yonkos and as far as details go, there is known to be only one yonko known as UziGarage, yonko's are very very powerful pirates and are reccomended not to just "attack" them... as it would result very dangerously.

Vice-Admiral

Admiral

Fleet Admiral

Vice-Admirals are people who are close to achieveing admiral, Vice-Admirals are strong, but not considered to be on the same level as the stronger pirates, but they are still strong.

Admirals are very strong and each one are unique and being an admiral means they are really strong, there can only be 3 admirals and they are around the same level as the "stronger" pirates.

Fleet Admiral is a one-man job, the Fleet Admiral is in-charge of everything, they choose the Shichibukai, admirals, vice-admirals, etc... he is in charge of everything, he can charge all the marines against one person and he is considered strong himself.