Like in other types of games (thinking on Destiny, and Halo) when players do different things in a match, they get metals for their collection, so over time you can see what you do the most.

Some ideas would be: double kills (back to back kills that happen within X amount of time of one another)
  • Picking up Metals in a match
  • Winning a Match
  • Getting the winning pickup
  • Getting a heal off that prevents a player from dying
  • etc...

And of course you'd be able to track and see your collection and PvP stats.

Thanks for your time and consideration.