Hitech, there is a bug in the ranking system!
Take it from someone who has been overrated by the score system more than anyone, and knows the score system and how to manipulate it as well as anyone;
1. There is a bug in the system. It sounds as if "Fighter captures" are possible and effect ranking dramatically. Look at my Attack ranking, I have an Attack capture (intentional) and am overrated in attack and overall. I reported the "Attack Capture" bug to Ronnie several months ago. "Fighter Captures" are new to me, but I have known something strange was up for quite awhile.
2. There are 5 Fighter rank sub-categories, all equally weighted, that make up fighter ranks; K/D, K/S, K/T, Hit % and Points. We are all ranked in each of the 5 fighter sub-categories. Combine all 5 sub-rankings and you get your final "Fighter" ranking.
I.E. someone who is ranked #1 in K/D, K/S, K/T and Hit %, but ranked # 1000 in points (1004 total) will be ranked just behind someone who is ranked exactly # 200 in all 5 sub-categories (1000 total).
Time, # of kills total, etc. have no impact on score.
eskimo