Frey
There are maps and maps, and the KDT ratio would indicate the average skill of the player along a period.
You can reach a high kd ratio in Sellow, but not in Asilum if you are a sniper.
IMO there is no better way to know who is the better player: More kills, less death, miminum time.
What is not fair is someone that kills 30 and dies 30 be considered a good player: the add for the team is zero!
And you are a sniper or a moving player, it is a matter of your choice. I think you must to consider the best choice for each map, and play to achieve the best result in each one of them.
That is why the game gives you the option to build 10 classes of combos between guns and perks.
Who is the best player: someone that is in first with 30/20 kd with 15 min of play, or who that just get in the server, and with 5 min has a k/d of 15/2?
Who is helping his team to win, who should be seeing in the top of the score table?
That is important? In fact no. The important is to help your team, have a good fun match, and gain the respect of the community.
But, once there is a rank, once there is a score table, and nick names will be shown in the top, that place should be design to the real valueable players, not just for those that play the entire day, dont you agree?
(sorry for English mistakes
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edit: I was looking to the Full List of the Top Players table, and saw something weird: how can the people get a score of 50 kills/min? Not even in Quake3 I remember to see so high score. Is there anything wrong with the data?