enemy commendations

I played tons of legendary warzone firefight and warzone. I havr plenty of warden slayer kills, yet my warden slayer is not complete and is stuck at 6/7 4th tier. what do I do?

The commendation for killing Warden and the medals for slaying bosses are a bit different. For it to count towards the commendation you have to get the very last shot (you will see a red x on you’re reticle if you do get the last shot). Even if it gives you credit it may not count as you being the one that actually killed him.