貌似昨晚上更新的？
完了很多船脑袋上有几个数字

打完一场还有点勋章绶带之类的东西显示出来

The Most Dominant Player System or MDP for short is an enhanced ranking system set to launch following this week's scheduled maintenance (Tuesday, June 4th due to Korean holiday). The system will introduce scoring/ranking/comparison data for players updated on a weekly basis. Full details to help explain how the system works are as follows:
MDP Overview
The weekly ranking provided by the MDP system will be noted in 3 categories made up of Winning Points, Sinking Points, and Credits Earned Points. These rankings will be calculated from Sunday to Saturday (server time), with results refreshed every Sunday at 12:01 PST. The top player for each category will remain listed for 3 weeks as tribute. Players will earn Medals for each of the 3 categories at the battle result screen if they meet the minimum threshold required for the category. This will be easily seen as the following:
Category Details：
A. Winning Point
This point will be received if players win the battle (should stay longer than 4 minutes in a single battle room). If a battle is won under these conditions, the player will receive the following medal at the result screen:
B. Sinking Point
This point can be received if a player sinks an enemy ship. Additional points will be provided if a player sinks more ships in a single battle. In order to receive more points, players should try sinking as many ships as possible.
C. Credits Earned Points
Points will be allotted to players for the credits earned from battle. More points will be provided as higher amounts of credits are earned.
Players who manage to show within the top 30 in the current rankings will be honored with a medal and rank displayed within the battle room.
The image above would read as:
2nd place on Winning Point; 5th place in Credit Points; and 6th place in Sinking Points
*1st in rankings will show a golden medal
This will only apply to the top 30 players in the weekly standings.
Additional note
As noted, the system is designed to be updated weekly and refreshed Sunday evening. For this first week, we will begin collecting data on Wednesday night and should have rankings available for the initial 4 days displayed on June 9th. Following this first week, the rankings will display 7 days worth of data.
Since the system is primarily website driven and only updated once a week, it should not place any stress or affect on the in-game server.
The aim of the system is to simply provide players a new method of competition and enjoyment. We hope players have fun competing against one another on a weekly basis through this new ranking system.
Thank you,

上文是MDP的官方解释。
MDP是之前推出过的一个排位系统。
1、击沉敌舰点，2、胜利点，3、积分。
此次的MVP，应该就是之前的MDP。换汤不换药，换个名字。就目前的情况看大致是这个情况。
游戏里有这3个数字的应该就是之前的老账号，注册的比较早的一批人。