So tired of challenges not registering…

Over it - I’m on the last weekly challenge and tired of it not registering. Need 6 revives in attrition but have had them not counting when I do it. Not the first time either with this playlist. One challenge was simply complete 3 attrition matches and it took me another 10 to complete the challenge. Thinking of going back to halo 5 and big team fiesta. Over this 343