Okay, small improvement I'm thinking of, but it would let new-comers on the map to know who to look out for and respect.
The person who had the most kills last map will have a golden crown next to their name in the scores screen when you press F1. At the end of the map, when it shows your scores automatically, it will show the "King" of that map, and if the King was different this map, a new person would be crowned king and the previous king would have a red crown next to their name, showing they left the dominant position. and when the next map starts, the red crown disappears and the last map leader has the crown again. tada. like this idea?