A ranking system like H1Z1 would work perfectly in this game.

A system of your top 10 games, with points based on your placement/amount of kills for each of those matches would work perfectly. Have ranks for different point amounts, just like H1Z1. This way you can see who are the best of the best, rather than the top players simply being who grind based. For reference to what I'm speaking of just search h1z1 leaderboards. The current leaderboards only considering total wins is kind of bland and boring in my opinion.