Okay it’s plain and simple . Wifi is great , your serves cause you to lag out … You get a " loss " on your service record . 343i come on now . It’s unbelievable how dysfunctional this game is , I’m not a gaming expert but I’m pretty sure 343i CHOSE to count it as a LOSS . Fix this please 
cause out of the 56 losses I have in warzone at least 10 were due to bad servers & it’s not like it’s every 2 games . I have 400+ wins but just fix the servers … Sadly , I’m not even sure about purchasing Halo 6 to be honest . Anyone know the best Call of Duty game ? 
How about they stop tracking stats altogether? That would be nice. I don’t understand how you can ever feel relaxed when you play Halo, if you’re worried about tainting your service record. The best advice I can give you is to just stop caring about it.
The best Call of Duty is Call of Duty 2.
The campaign show you the front from very different perspectives and the Stalingrad mission - damn son.
You mentioned running on WiFi, i would run a few tests on a wired connection instead and see if you have better stability when playing.
The game is unstable on wi fi. Couldn’t tell you why, but wired with open nat will minimize your issue.