Just to add some tips if you are grinding this or The Eat Dirt trophy.
If you are playing on superstar mode you can RESET the match and the medals that you have unlocked so far will stay in the counter for the trophy(s).
This will save you time on loading screens and match results making the grind faster.
By the way, the hunter medal is for making take downs to either enemy team or not.
And the Check Mate by slamming 2 times an enemy team to a wall or a tree, etc.