10 and 15 kills badges
Since those two milestones are very important for all players, they should be prized with badges to show they've reached those numbers of kills (the same way that there are four different badges for damage). It's VERY frustrating when you kill 10, 15, or 19 in a "worse" scenario, and ends up getting absolutely nothing. I decided to give a try on the design of the potential new badges (image attached), just to play around with it and illustrate my suggestion in a better way. The look of those new ones helps keep the 20 kills badge's uniqueness and, at the same time, emphasizes the importance of getting 10 and 15 kills by prizing the players who reached those milestones with different - but still cool - badges.
Please add that to the game on Season 9.