I was doing the Queen's Bounty in which you have to defeat 3 fallen walkers. I did this with my friend in a fireteam and we did it three times. The first time, the game acknowledged that we both defeated the walker. The second and third time my friend got acknowledged but I didn't. So after defeating 3 walkers my bounty emblem says that I only have defeated 1 walker out of 3, even though I have defeated 3 walkers already. Did anyone else come across this?